Re: [Elecraft] new owner looking for fuses.
I always follow the manual. What someone said is "hear say" in court. For both 115V and 230V operation 3AG fast blow fuses are specified. For 115V those would be 12 amp fuses. For 230V those would be 6 amp fuses. And they should be rated at 250 volts. Just be sure the Mains Voltage Settings on page 5 of the manual are followed. The KPA-500 comes from the factory with the transformer tap set for 116V to 125V and 231V to 250V depending on selection on the fuse block / power inlet at the rear. There are other voltage ranges as defined on page 8 of the manual. 73 Bob, K4TAX On 7/15/2018 6:07 PM, Don Wilhelm wrote: John, I really hate to argue with the support folks at Elecraft (it may be a matter of preference), but if I were you, I would follow the manual recommendations. Try fast blow first, and if they blow, use slow-blow. The slow-blow will ride through voltage transients on your AC line, but the fast-blow may not - so it all depends. 73, Don W3FPR On 7/15/2018 6:52 PM, John Clemmer wrote: Hello Don. when I talked to the guy at elecraft, I am almost positive he said slow blow fuses. In the manual' it says 3 AG fast blow. Really confused here. Looked at the power cord that Mike sent with the amp. It's a 220 power cord. Ordered a heavy duty 15 amp power cord today. I have a 10 amp but don't think it is heavy duty like the guy said to use. Does elecraft have a way of ordering replacement parts or a source where they get their parts. KB4OIF John On July 14, 2018 at 2:04 PM Don Wilhelm wrote: John yes, 12 amp 240 volts will work fine. The voltage rating for a fuse is "any voltage up to the rated voltage". The manual statement to use "12A fuses for 115V" does NOT mean that the fuses must be rated for 115V. 73, Don W3FPR On 7/14/2018 1:43 PM, John Clemmer wrote: Hello. new owner of a KPA 500 and KAT 500. Previous owner is a good friend of mine. He had 220 in his shack. He had 6 amp fuses in it. I have 110 and am looking hard for fuses for the KPA 500. Manual says two 12 amp fuses for 115V. tech said use slow blow ones. Any suggestions. Can't seem to find a forum for Elelecraft. Will 12 amp 230 v work John KB4OIF Proud Vietnam Vet Freedom is not free, someone paid!!! There would be no freedom without the military In GOD, we trust. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
John, I really hate to argue with the support folks at Elecraft (it may be a matter of preference), but if I were you, I would follow the manual recommendations. Try fast blow first, and if they blow, use slow-blow. The slow-blow will ride through voltage transients on your AC line, but the fast-blow may not - so it all depends. 73, Don W3FPR On 7/15/2018 6:52 PM, John Clemmer wrote: Hello Don. when I talked to the guy at elecraft, I am almost positive he said slow blow fuses. In the manual' it says 3 AG fast blow. Really confused here. Looked at the power cord that Mike sent with the amp. It's a 220 power cord. Ordered a heavy duty 15 amp power cord today. I have a 10 amp but don't think it is heavy duty like the guy said to use. Does elecraft have a way of ordering replacement parts or a source where they get their parts. KB4OIF John On July 14, 2018 at 2:04 PM Don Wilhelm wrote: John yes, 12 amp 240 volts will work fine. The voltage rating for a fuse is "any voltage up to the rated voltage". The manual statement to use "12A fuses for 115V" does NOT mean that the fuses must be rated for 115V. 73, Don W3FPR On 7/14/2018 1:43 PM, John Clemmer wrote: Hello. new owner of a KPA 500 and KAT 500. Previous owner is a good friend of mine. He had 220 in his shack. He had 6 amp fuses in it.I have 110 and am looking hard for fuses for the KPA 500. Manual says two 12 amp fuses for 115V. tech said use slow blow ones. Any suggestions. Can't seem to find a forum for Elelecraft. Will 12 amp 230 v work John KB4OIF Proud Vietnam Vet Freedom is not free, someone paid!!! There would be no freedom without the military In GOD, we trust. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
Hello Don. when I talked to the guy at elecraft, I am almost positive he said slow blow fuses. In the manual' it says 3 AG fast blow. Really confused here. Looked at the power cord that Mike sent with the amp. It's a 220 power cord. Ordered a heavy duty 15 amp power cord today. I have a 10 amp but don't think it is heavy duty like the guy said to use. Does elecraft have a way of ordering replacement parts or a source where they get their parts. KB4OIF John > On July 14, 2018 at 2:04 PM Don Wilhelm wrote: > > > John yes, 12 amp 240 volts will work fine. The voltage rating for a > fuse is "any voltage up to the rated voltage". > > The manual statement to use "12A fuses for 115V" does NOT mean that the > fuses must be rated for 115V. > > 73, > Don W3FPR > > > On 7/14/2018 1:43 PM, John Clemmer wrote: > > Hello. new owner of a KPA 500 and KAT 500. Previous owner is a good > > friend of mine. He had 220 in his shack. He had 6 amp fuses in it.I > > have 110 and am looking hard for fuses for the KPA 500. Manual says two 12 > > amp fuses for 115V. tech said use slow blow ones. Any suggestions. Can't > > seem to find a forum for Elelecraft. Will 12 amp 230 v work John KB4OIF Proud Vietnam Vet Freedom is not free, someone paid!!! There would be no freedom without the military In GOD, we trust. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
Sorry, I misunderstood. You are quite right that the current drawn at the lower voltage will be double for the same power output. Victor 4X6GP > On 15 Jul 2018, at 18:38, wrote: > > I did not state the fuse current rating is dependent on the voltage, only > that you will need much higher amperage fuses (according to Georg Ohm) if you > changed the wiring of a 240v amp to 120v. > > John KK9A > > From: Vic Rosenthal [mailto:k2vco@gmail.com] > Sent: Sunday, July 15, 2018 12:58 > To: j...@kk9a.com > Cc: Elecraft Reflector > Subject: Re: [Elecraft] new owner looking for fuses. > > This is incorrect! > The current rating of a fuse is independent of the voltage. > The fuse blows as a result of heat, which is proportional to I squared times > R. > The voltage rating is just a guarantee that if it does blow, it won’t stay > conductive due to an arc. > > Victor 4X6GP > > On 15 Jul 2018, at 5:21, wrote: > > Correction: I believe that there are conditions where you would have 240 > volts on the fuse in a standard single phase 240v circuit so it's best to > use the standard 250v fuses. Of course 250v fuses are also fine with 120v > amp wiring but the amperage will double. > > GL > > John KK9A __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
I remember blowing up NE-2s, but only when I didn't have a current limiting resistor. 73 Bill AE6JV On 7/15/18 at 10:58 AM, k...@sdellington.us (K9MA) wrote: On 7/15/2018 12:49, Bob McGraw K4TAX wrote: Hence the reason for 3AC fuses. They have a ceramic body and don't explode. Of course the only way to tell if they are open is to measure them. Bob, K4TAX It was a long time ago, but I think we blew up some of those, too. --- Bill Frantz| Truth and love must prevail | Periwinkle (408)356-8506 | over lies and hate. | 16345 Englewood Ave www.pwpconsult.com | - Vaclav Havel | Los Gatos, CA 95032 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
On 7/15/2018 12:49, Bob McGraw K4TAX wrote: Hence the reason for 3AC fuses. They have a ceramic body and don't explode. Of course the only way to tell if they are open is to measure them. Bob, K4TAX It was a long time ago, but I think we blew up some of those, too. 73, Scott K9MA -- Scott K9MA k...@sdellington.us __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
I suppose you could put a NE-2 bulb and a resistor in parallel with the fuse. Just not when the fuse is protecting your house wiring. Then if the amp tries to draw current, the bulb will glow when the fuse is open. 73 Bill AE6JV On 7/15/18 at 10:49 AM, rmcg...@blomand.net (Bob McGraw K4TAX) wrote: Hence the reason for 3AC fuses. They have a ceramic body and don't explode. Of course the only way to tell if they are open is to measure them. --- Bill Frantz| If the site is supported by | Periwinkle (408)356-8506 | ads, you are the product.| 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
Hence the reason for 3AC fuses. They have a ceramic body and don't explode. Of course the only way to tell if they are open is to measure them. Bob, K4TAX Sent from my iPhone > On Jul 15, 2018, at 10:18 AM, K9MA wrote: > > Also, fuses rated 250 V AC are typically rated only 32 V DC. That's because, > with AC, the current goes to zero twice per cycle, so the arc can go out. Not > so with DC. I suspect the standard 28 V DC once used in many aircraft was > chosen because that's about the highest voltage which can be switched with a > mechanical relay or switch. (Something about the energy required to strip > electrons from the metal contacts.) Solid-state switches, of course, don't > have that problem, hence the popularity of higher voltage DC systems now. > > Long ago, I put a 3AG fuse in series with the finals' cathodes of a T-4XB. > The first step in replacing that fuse when it blew was to shake all the glass > out of the radio. > > 73, > Scott K9MA > > > >> On 7/15/2018 05:22, Roy Koeppe wrote: >> One reason 'all fuses' aren't just rated at 250v to be done with it is that >> a shorter element section in a lower voltage fuse can have a lower >> resistance, due to the shorter arc gap allowed. Thus lower voltage drop for >> a low voltage circuit, etc. >> >> 73, RoyK6XK >> >> >> >> >> >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k...@sdellington.us > > > -- > Scott K9MA > > k...@sdellington.us > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
I did not state the fuse current rating is dependent on the voltage, only that you will need much higher amperage fuses (according to Georg Ohm) if you changed the wiring of a 240v amp to 120v. John KK9A From: Vic Rosenthal [mailto:k2vco@gmail.com] Sent: Sunday, July 15, 2018 12:58 AM To: j...@kk9a.com Cc: Elecraft Reflector Subject: Re: [Elecraft] new owner looking for fuses. This is incorrect! The current rating of a fuse is independent of the voltage. The fuse blows as a result of heat, which is proportional to I squared times R. The voltage rating is just a guarantee that if it does blow, it won’t stay conductive due to an arc. Victor 4X6GP On 15 Jul 2018, at 5:21, wrote: Correction: I believe that there are conditions where you would have 240 volts on the fuse in a standard single phase 240v circuit so it's best to use the standard 250v fuses. Of course 250v fuses are also fine with 120v amp wiring but the amperage will double. GL John KK9A __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
Also, fuses rated 250 V AC are typically rated only 32 V DC. That's because, with AC, the current goes to zero twice per cycle, so the arc can go out. Not so with DC. I suspect the standard 28 V DC once used in many aircraft was chosen because that's about the highest voltage which can be switched with a mechanical relay or switch. (Something about the energy required to strip electrons from the metal contacts.) Solid-state switches, of course, don't have that problem, hence the popularity of higher voltage DC systems now. Long ago, I put a 3AG fuse in series with the finals' cathodes of a T-4XB. The first step in replacing that fuse when it blew was to shake all the glass out of the radio. 73, Scott K9MA On 7/15/2018 05:22, Roy Koeppe wrote: One reason 'all fuses' aren't just rated at 250v to be done with it is that a shorter element section in a lower voltage fuse can have a lower resistance, due to the shorter arc gap allowed. Thus lower voltage drop for a low voltage circuit, etc. 73, Roy K6XK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k...@sdellington.us -- Scott K9MA k...@sdellington.us __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
One reason 'all fuses' aren't just rated at 250v to be done with it is that a shorter element section in a lower voltage fuse can have a lower resistance, due to the shorter arc gap allowed. Thus lower voltage drop for a low voltage circuit, etc. 73, RoyK6XK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
On 7/14/2018 9:57 PM, Vic Rosenthal wrote: The current rating of a fuse is independent of the voltage. The fuse blows as a result of heat, which is proportional to I squared times R. The voltage rating is just a guarantee that if it does blow, it won’t stay conductive due to an arc. Exactly right. AND -- the breaker at the panelboard protects the entire circuit against faults that could be unsafe for personnel or might start a fire. By contrast, the fuses in the KPA protect the amplifier, NOT the circuit, from a condition where the amp is drawing too much current, and could destructively fail. SO fuses for 240V operation are specified for half the current of fuses for 120V operation (because normal current draw is half at 240V as compared to 120V). I buy my fuses from the usual suspect electronic distributors, and I've always kept a stash of standard values. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
He said "amperage will double with 120v amp wiring" meaning that if you run the amp at 120 instead of 240, current is doubled. 73 Josh W6XU Sent from my mobile device > On Jul 14, 2018, at 9:55 PM, Don Wilhelm wrote: > > Where did that come from? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
Actually, if you have the part numbers, the quickest way is to phone 831-763-4211 and talk with the sales folks, they can take your part number information and obtain your credit card information in a few minutes. Give them a bit of a break, things get quite busy on Monday mornings, so try to avoid that time frame. Yes, you can order on-line too. 73, Don W3FPR On 7/14/2018 8:05 PM, Mark E. Musick wrote: John, Just send an e-mail to Elecraft sales. Give them the Elecraft part numbers I sent you and the quantity you want. Tell them you need instructions on how to purchase them through the website. They will reply to you with their current price and how to order them through the Elecraft website. It has been so long I have forgotten how I ordered them through the website. I'd have to ask them again myself, if I needed replacements. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
This is incorrect! The current rating of a fuse is independent of the voltage. The fuse blows as a result of heat, which is proportional to I squared times R. The voltage rating is just a guarantee that if it does blow, it won’t stay conductive due to an arc. Victor 4X6GP > On 15 Jul 2018, at 5:21, wrote: > > Correction: I believe that there are conditions where you would have 240 > volts on the fuse in a standard single phase 240v circuit so it's best to > use the standard 250v fuses. Of course 250v fuses are also fine with 120v > amp wiring but the amperage will double. > > GL > > John KK9A > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
Where did that come from? The amperage of the fuse will be the same whether used on 120 or 240 volts. Maybe you are thinking of power rating, but that has nothing to do with it. 73, Don W3FPR On 7/14/2018 10:21 PM, j...@kk9a.com wrote: Correction: I believe that there are conditions where you would have 240 volts on the fuse in a standard single phase 240v circuit so it's best to use the standard 250v fuses. Of course 250v fuses are also fine with 120v amp wiring but the amperage will double. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
Correction: I believe that there are conditions where you would have 240 volts on the fuse in a standard single phase 240v circuit so it's best to use the standard 250v fuses. Of course 250v fuses are also fine with 120v amp wiring but the amperage will double. GL John KK9A -Original Message- From: j...@kk9a.com [mailto:j...@kk9a.com] Sent: Saturday, July 14, 2018 6:37 PM To: 'Elecraft Reflector' Subject: [Elecraft] new owner looking for fuses. 230v fuses are perfect. Most people in the US will not have more than 120v on each fuse even when running 240v. I am not sure why slow blow was recommended, is that what the manual says? These fuses are easy to find, if you don't see them locally try Mouser. This IS the forum for Elecraft products, even though it doesn't always seem that way. John KK9A On 7/14/2018 1:43 PM, John Clemmer wrote: > Hello. new owner of a KPA 500 and KAT 500. Previous owner is a good friend of mine. He had 220 in his shack. He had 6 amp fuses in it.I have 110 and am looking hard for fuses for the KPA 500. Manual says two 12 amp fuses for 115V. tech said use slow blow ones. Any suggestions. Can't seem to find a forum for Elelecraft. Will 12 amp 230 v work __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New owner with New K3S kit need help?
I plugged the REF IN TMP cable to J4 on the Main KSYN3 board per the diagram on page 15 of the K3EXREF installation and operations manual. The 2 meter frequency is off according to the K3S display and verified being not centered with my P3. If I plug the REF IN TMP cable into J1 on the Main KSYN3 board the 2 meter frequency is centered and accurate also verified with my P3. I used a local repeater and tried simplex with my Yeasu FT - 60 and the two meter displayed on the K3S is off center with distorted audio if I plug the TMP cable into J4. If I plug into J1 audio sounds great and the K3S displayed frequency is centered with my P3. So I assume J1 is the proper connection? I have an email into tech support about this. Glenn Maclean WA7SPY > On Jul 14, 2018, at 12:00 PM, Don Wilhelm wrote: > > Glenn, > > The K3EXREF manual is dated later. The other document does not include the > K3EXREF and would apply only if the K3XREF were not installed. > > 73, > Don W3FPR > >> On 7/14/2018 12:02 PM, WA7SPY wrote: >> Hi Don, >> I understand about the Errata. The confusion is the Errata is for the KXV144 >> Reference module dated Dec 5 2013 showing placement at J1 on the KSYN3A. The >> K3EXREF manual is dated August 23, 2016 and shows placement at J4 on the >> KSYN3A. Hence confusion? >> Glenn Maclean WA7SPY >> >> >> > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
John, Just send an e-mail to Elecraft sales. Give them the Elecraft part numbers I sent you and the quantity you want. Tell them you need instructions on how to purchase them through the website. They will reply to you with their current price and how to order them through the Elecraft website. It has been so long I have forgotten how I ordered them through the website. I'd have to ask them again myself, if I needed replacements. Mark, WB9CIF -Original Message- From: John Clemmer Sent: Saturday, July 14, 2018 11:22 PM To: Mark E. Musick Subject: RE: [Elecraft] new owner looking for fuses. Hi Mark been all over their page Elecraft and see no way to order parts. John KB4OIF > On July 14, 2018 at 5:59 PM "Mark E. Musick" wrote: > > > John, > The Elecraft part numbers you are looking for are: > E850449 Fuse Set 6A, 2pcs for 240 Volt operation > E850448 Fuse Set 12A, 2pcs for 120 Volt operation I operate my KPA500 > on 240 Volts, but on FD operate it on 120 Volts. > I ordered 2 sets of each for spares and the capability to operate on > either Voltage. > > Mark, WB9CIF > > -Original Message- > From: elecraft-boun...@mailman.qth.net > On Behalf Of John Clemmer > Sent: Saturday, July 14, 2018 5:44 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] new owner looking for fuses. > > Hello. new owner of a KPA 500 and KAT 500. Previous owner is a good friend > of mine. He had 220 in his shack. He had 6 amp fuses in it.I have 110 > and am looking hard for fuses for the KPA 500. Manual says two 12 amp > fuses for 115V. tech said use slow blow ones. Any suggestions. > Can't seem to find a forum for Elelecraft. Will 12 amp 230 v work > > John > KB4OIF > Proud Vietnam Vet > Freedom is not free, someone paid!!! > There would be no freedom without the military > In GOD, we trust. > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > markmus...@sbcglobal.net > John KB4OIF Proud Vietnam Vet Freedom is not free, someone paid!!! There would be no freedom without the military In GOD, we trust. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
John, The Elecraft part numbers you are looking for are: E850449 Fuse Set 6A, 2pcs for 240 Volt operation E850448 Fuse Set 12A, 2pcs for 120 Volt operation I operate my KPA500 on 240 Volts, but on FD operate it on 120 Volts. I ordered 2 sets of each for spares and the capability to operate on either Voltage. Mark, WB9CIF -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of John Clemmer Sent: Saturday, July 14, 2018 5:44 PM To: elecraft@mailman.qth.net Subject: [Elecraft] new owner looking for fuses. Hello. new owner of a KPA 500 and KAT 500. Previous owner is a good friend of mine. He had 220 in his shack. He had 6 amp fuses in it.I have 110 and am looking hard for fuses for the KPA 500. Manual says two 12 amp fuses for 115V. tech said use slow blow ones. Any suggestions. Can't seem to find a forum for Elelecraft. Will 12 amp 230 v work John KB4OIF Proud Vietnam Vet Freedom is not free, someone paid!!! There would be no freedom without the military In GOD, we trust. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to markmus...@sbcglobal.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New owner with New K3S kit need help?
Glenn, The K3EXREF manual is dated later. The other document does not include the K3EXREF and would apply only if the K3XREF were not installed. 73, Don W3FPR On 7/14/2018 12:02 PM, WA7SPY wrote: Hi Don, I understand about the Errata. The confusion is the Errata is for the KXV144 Reference module dated Dec 5 2013 showing placement at J1 on the KSYN3A. The K3EXREF manual is dated August 23, 2016 and shows placement at J4 on the KSYN3A. Hence confusion? Glenn Maclean WA7SPY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new owner looking for fuses.
John yes, 12 amp 240 volts will work fine. The voltage rating for a fuse is "any voltage up to the rated voltage". The manual statement to use "12A fuses for 115V" does NOT mean that the fuses must be rated for 115V. 73, Don W3FPR On 7/14/2018 1:43 PM, John Clemmer wrote: Hello. new owner of a KPA 500 and KAT 500. Previous owner is a good friend of mine. He had 220 in his shack. He had 6 amp fuses in it.I have 110 and am looking hard for fuses for the KPA 500. Manual says two 12 amp fuses for 115V. tech said use slow blow ones. Any suggestions. Can't seem to find a forum for Elelecraft. Will 12 amp 230 v work __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New owner with New K3S kit need help?
Hi Don, I understand about the Errata. The confusion is the Errata is for the KXV144 Reference module dated Dec 5 2013 showing placement at J1 on the KSYN3A. The K3EXREF manual is dated August 23, 2016 and shows placement at J4 on the KSYN3A. Hence confusion? Glenn Maclean WA7SPY > On Jul 14, 2018, at 8:19 AM, Don Wilhelm wrote: > > Glenn, > > The errata sheets always supersedes the manual - it is the latest > update/correction. The designation on the errata title carries the manual > designation that is to be corrected. > Go to the Documentation download page to be certain you have the latest. > > 73, > Don W3FPR > >> On 7/14/2018 10:41 AM, WA7SPY wrote: >> >> The K3S and options are all working. I had a problem with 2meters being off >> frequency after adding the K3EXREF and the K144XV reference board. I did a >> complete reset to factory defaults. I removed the K144XV reference board. >> Then set the 2 meter offset back to what was labeled on the module. The 2 >> meter frequency was accurate. I put the K144XV reference board back in. Now >> the 2 meter frequency is accurate with the board back in. My question is >> where is the TMP cable suppose to be connected on the KSYN3 board? I have >> one end connected to REF IN on the 2 meter module. I initially connected the >> other end to J4 on the KSYN3. I now have it connected to J1 on the KSYN3 do >> I have the TMP cable connected correctly? The documentation is a little >> confusing to me. Figure 13 page 15 on the K3EXREF manual shows J4 being used >> on the KSYN3A if both the KXV144 reference board and the KEXREF options are >> installed. There is an Errata sheet showing to use J1 on the KSYN3 board. >> Which one is cor >> rect to use for my set up J1 or J4? >> The K3EXREF is working with very accurate frequency on the HF bands with my >> GPS 10 MHz disciplined oscillator clock connected. The 2 meter frequency >> was off when connected to J4. I am not sure if it was corrupt software and >> doing the reset corrected the issue and am uncertain where to connect to on >> the KSYN3A board? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New owner with New K3S kit need help?
Glenn, The errata sheets always supersedes the manual - it is the latest update/correction. The designation on the errata title carries the manual designation that is to be corrected. Go to the Documentation download page to be certain you have the latest. 73, Don W3FPR On 7/14/2018 10:41 AM, WA7SPY wrote: The K3S and options are all working. I had a problem with 2meters being off frequency after adding the K3EXREF and the K144XV reference board. I did a complete reset to factory defaults. I removed the K144XV reference board. Then set the 2 meter offset back to what was labeled on the module. The 2 meter frequency was accurate. I put the K144XV reference board back in. Now the 2 meter frequency is accurate with the board back in. My question is where is the TMP cable suppose to be connected on the KSYN3 board? I have one end connected to REF IN on the 2 meter module. I initially connected the other end to J4 on the KSYN3. I now have it connected to J1 on the KSYN3 do I have the TMP cable connected correctly? The documentation is a little confusing to me. Figure 13 page 15 on the K3EXREF manual shows J4 being used on the KSYN3A if both the KXV144 reference board and the KEXREF options are installed. There is an Errata sheet showing to use J1 on the KSYN3 board. Which one is c or rect to use for my set up J1 or J4? The K3EXREF is working with very accurate frequency on the HF bands with my GPS 10 MHz disciplined oscillator clock connected. The 2 meter frequency was off when connected to J4. I am not sure if it was corrupt software and doing the reset corrected the issue and am uncertain where to connect to on the KSYN3A board? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New owner with New K3S kit need help?
Sorry - spell check strikes again: 2. From J1 on the Main KSYN3A board to REF IN on the K144XV with Reference Oscillator Phase Lock Option installed. John > On Jul 14, 2018, at 10:51 AM, John Stengrevics > wrote: > > Hi Glenn, > > I had problems with this as well. I asked tech support and they sent an > email showing the following correct cable placement: > > 1. From J2 on KREF3 board to J83 on the Main KSYN3A board. > > 2. From J1 on the Main KSYN3A board to REF I note K144XV with Reference > Oscillator Phase Lock Option Installed. > > Hope this is helpful. > > John > WA1EAZ > >> On Jul 14, 2018, at 10:41 AM, WA7SPY wrote: >> >> I have a new K3S kit and P3 kit that I put together. The following options >> are installed: >> FL1 - 13khz FM filter >> FL2 - 2.7 khz filter >> FL3 - 400 hz filter >> FL3 - 200 hz filter >> KPA3A 100 watt PA >> KAT3A 100 watt Tuner >> KBPF3A General coverage band pass >> KTCX03-1 High stability TCXO >> K144XV internal 2 meter module >> K3EXREF external 10mhz reference >> K144XV phase lock board. >> The K3S and options are all working. I had a problem with 2meters being off >> frequency after adding the K3EXREF and the K144XV reference board. I did a >> complete reset to factory defaults. I removed the K144XV reference board. >> Then set the 2 meter offset back to what was labeled on the module. The 2 >> meter frequency was accurate. I put the K144XV reference board back in. Now >> the 2 meter frequency is accurate with the board back in. My question is >> where is the TMP cable suppose to be connected on the KSYN3 board? I have >> one end connected to REF IN on the 2 meter module. I initially connected the >> other end to J4 on the KSYN3. I now have it connected to J1 on the KSYN3 do >> I have the TMP cable connected correctly? The documentation is a little >> confusing to me. Figure 13 page 15 on the K3EXREF manual shows J4 being used >> on the KSYN3A if both the KXV144 reference board and the KEXREF options are >> installed. There is an Errata sheet showing to use J1 on the KSYN3 board. >> Which one is c > or >> rect to use for my set up J1 or J4? >> The K3EXREF is working with very accurate frequency on the HF bands with my >> GPS 10 MHz disciplined oscillator clock connected. The 2 meter frequency >> was off when connected to J4. I am not sure if it was corrupt software and >> doing the reset corrected the issue and am uncertain where to connect to on >> the KSYN3A board? >> >> Thanks for any help, >> Glenn Maclean WA7SPY >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jstengrev...@comcast.net > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jstengrev...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New owner with New K3S kit need help?
Hi Glenn, I had problems with this as well. I asked tech support and they sent an email showing the following correct cable placement: 1. From J2 on KREF3 board to J83 on the Main KSYN3A board. 2. From J1 on the Main KSYN3A board to REF I note K144XV with Reference Oscillator Phase Lock Option Installed. Hope this is helpful. John WA1EAZ > On Jul 14, 2018, at 10:41 AM, WA7SPY wrote: > > I have a new K3S kit and P3 kit that I put together. The following options > are installed: > FL1 - 13khz FM filter > FL2 - 2.7 khz filter > FL3 - 400 hz filter > FL3 - 200 hz filter > KPA3A 100 watt PA > KAT3A 100 watt Tuner > KBPF3A General coverage band pass > KTCX03-1 High stability TCXO > K144XV internal 2 meter module > K3EXREF external 10mhz reference > K144XV phase lock board. > The K3S and options are all working. I had a problem with 2meters being off > frequency after adding the K3EXREF and the K144XV reference board. I did a > complete reset to factory defaults. I removed the K144XV reference board. > Then set the 2 meter offset back to what was labeled on the module. The 2 > meter frequency was accurate. I put the K144XV reference board back in. Now > the 2 meter frequency is accurate with the board back in. My question is > where is the TMP cable suppose to be connected on the KSYN3 board? I have one > end connected to REF IN on the 2 meter module. I initially connected the > other end to J4 on the KSYN3. I now have it connected to J1 on the KSYN3 do I > have the TMP cable connected correctly? The documentation is a little > confusing to me. Figure 13 page 15 on the K3EXREF manual shows J4 being used > on the KSYN3A if both the KXV144 reference board and the KEXREF options are > installed. There is an Errata sheet showing to use J1 on the KSYN3 board. > Which one is c or > rect to use for my set up J1 or J4? > The K3EXREF is working with very accurate frequency on the HF bands with my > GPS 10 MHz disciplined oscillator clock connected. The 2 meter frequency was > off when connected to J4. I am not sure if it was corrupt software and doing > the reset corrected the issue and am uncertain where to connect to on the > KSYN3A board? > > Thanks for any help, > Glenn Maclean WA7SPY > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jstengrev...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New Owner
Andy, Well, you could give a complete alignment and calibration, and during that process you will likely discover anything that does not behave correctly. If you go to my website www.w3fpr.com, you will find a document there which is an extract from the K2 manual having the test and alignment portions of the manual duplicated. You may use that for the basic K2. When it comes to the dial calibration and filter alignment steps, you will likely want to follow the instructions in my article on K2 Dial Calibration rather than those extracted from the manual. For the KSB2 option, you will find that only the carrier balance adjustment is needed (along with aligning the OP1 filter BFOs - see my K2 Dial Calibration article), and you will find methods for setting the carrier balance in the KSB2 manual. For the K160RX, you would want to check that the RX antenna works, and also check the VCO voltage range for 160 meters to be certain it is within range. Check the maximum power output from the base K2 on all bands. All the above can (should) be done with the KPA100 removed from the base K2. If you have the KPA100 on that K2, consult the KPA100 manual for setting the bias and balancing and calibrating the wattmeter. After that, check each band with the KPA100 attached and powered for maximum power output. For tools, you will need a good dummy load, the internal counter probe for the K2, a DMM, and an external wattmeter that you can trust for the KPA100 wattmeter setting. Optional to make the task easier - a wideband noise generator like the Elecraft N-Gen, a signal generator with controlled output level, such as the Elecraft XG1, XG2, or XG3 for setting the S-meter, An oscilloscope is handy for observing the RF output (connect it with a 10X probe directly across the dummy load). For setting the filters, you will need Spectrogram running on a computer and a cable from the K2 audio output to the soundcard line in (or mic input). The latest firmware is 2.04r/1.09. You can find out what firmware level is installed in your K2 by holding a button in when you power on - that information will be displayed briefly. If your firmware level is earlier than 2.01, you will want to upgrade it before proceding with the alignment and test (or use the older manual) information. The material on my website assumes firmware version 2.01 or later. 73, Don W3FPR 73, Don W3FPR On 6/8/2011 3:53 PM, Andy McMullin wrote: Hi All, Having lurked on the list for a short while, I am now the proud owner of a previously-owned K2 with the optional SSB and 1.8 MHz and a 2151 serial number. It arrived by post today. What checks do you think I ought to carry out to ensure it is in tip-top condition? Is it easy to ensure the firmware is at the best revision and that all the recommended updates have been applied? Thanks in advance for your advice. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New owner
I used my K2 to learn code by sending under the TEST mode. Still do that while I am warming up. You could not tell by this evening's net however :( My fist was less than stellar. But I was pounding nails and chainsawing wood this afternoon. Maybe one day the manual labor will cease and I can pound brass all day. Or better yet find a job as a telegrapher somewhere :^) I can dream can't I? Kevin. GL on the rig by the way. You will have fun with it; either listening, practicing, or when you pass element 1 by getting on the air and working a few of us! 73, KJR On Sun, 11 Sep 2005 21:18:47 -0500, Mark Bayern [EMAIL PROTECTED] wrote: Thanks Elecraft for starting the fire burning.and I look forward to being able to USE my K2 once it's built and my license upgraded. You can use the K2 with your current license -- just don't transmit. Mark -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.10.20/95 - Release Date: 9/9/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
