Re: [Elecraft] KX3 power supply

Jeff, Pro Audio Engineering also has good stock of these cores and better pricing than Mouser. Howie - WA4PSC I bought the cores from Verical.com -- they had the best deal on them -- but they appear to be out of stock. __

Re: [Elecraft] KX3 power supply

I did that for a folding solar panel I purchased that put out 18V. A couple zeners dropped it to 15.3V. The panel doesn't have the juice for transmission, but fine for receive (or charging the batteries). Jeff - kg7hdz > On Jan 18, 2016, at 16:21, Don Wilhelm wrote: > >

Re: [Elecraft] KX3 power supply

There are other good solutions. Use the panels and charge controller to charge an outboard battery. Now you DO have enough for TX. Genasun is the best, no RF noise, very efficient. They make different products that are designed for each type of battery chemistry, and for different power

Re: [Elecraft] KX3 power supply

I have a LiFePo from Bienno and the Buddipole charge controller for portable ops. Very tiny. System works well. Jeff - kg7hdz > On Jan 19, 2016, at 1:50 PM, Jim Brown wrote: > > There are other good solutions. Use the panels and charge controller to > charge an

Re: [Elecraft] KX3 power supply

-Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jeffrey Otterson Sent: Tuesday, January 19, 2016 6:39 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 power supply Hello Chip, I did a lot of testing of KX3 power supplies, and the PAE

[Elecraft] KX3 Power Supply

I purchased 5V, 12V, & 15V versions of the Solas power supplies made in Germany. The SCP30S15DN 15V @ 2A 2 A Amp 100-240V 0.75A are currently selling on ebay for about $25. I have not done any extensive testing but have not noticed any power irregularities or hash. They seem to be very well

Re: [Elecraft] KX3 power supply

ot;RF Interference to Audio Systems" paper. 73 Jeff n1kdo -- Forwarded message -- > From: Chip Stratton <lightdazz...@gmail.com> > To: > Cc: Elecraft Reflector <Elecraft@mailman.qth.net> > Date: Mon, 18 Jan 2016 19:38:50 -0600 > Subject: Re: [Elecraft] KX

Re: [Elecraft] KX3 power supply

...@mailman.qth.net wrote: Message: 18 Date: Mon, 18 Jan 2016 19:38:50 -0600 From: Chip Stratton<lightdazz...@gmail.com> Cc: Elecraft Reflector<Elecraft@mailman.qth.net> Subject: Re: [Elecraft] KX3 power supply Message-ID: <capf-ba2-rourfolzrdgonuwu4tzz34n1rbatt5+tbbkl-34...@mail.gmail.co

Re: [Elecraft] KX3 power supply

Don Thanks for the reply. I have thought long about it, and decided I would rather not risk damaging my KX3 for the sake of a cheap PSU. I live too far away from the factory to risk damaging the KX3 - it cost me $ 450.00 just to ship my new KX3 to me in June. I will leave the cheap eBay PSU

Re: [Elecraft] KX3 power supply

John, I would suggest that you put a diode in series with that supply - rated at 5 amps. That will reduce the voltage by the amount of the diode drop. Running the KX3 (or any other device) above the specified maximum voltage is done at your own peril - it may work, but it taxes the

Re: [Elecraft] KX3 power supply

I bought one of the pro audio engineering KX3 power supplies and it works perfectly. 73, Matt NQ6N On Mon, Jan 18, 2016 at 1:31 PM, Howard Hoyt wrote: > John, > > I do have a horse in this race (the Kx33), but I will tell you that in > testing many supplies I have seen that

Re: [Elecraft] KX3 power supply

The PAE power supply works fine, but it still puts out enough hash that I can't use my loop antenna near it. It is better than others? Probably, but still not usable for me when near the receiving antenna. Chip AE5KA On Mon, Jan 18, 2016 at 5:38 PM, Matt Murphy wrote: > I

Re: [Elecraft] KX3 power supply

net> Subject: [Elecraft] KX3 power supply Someone on this reflector suggested a power supply off eBay, that could be used with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I bought one, this is the one http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba

[Elecraft] KX3 power supply

Someone on this reflector suggested a power supply off eBay, that could be used with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I bought one, this is the one…

[Elecraft] KX3 power supply

John, I do have a horse in this race (the Kx33), but I will tell you that in testing many supplies I have seen that many of them have poor regulation. Some show as much as 25% peak over-voltage which you would need a scope to see when a load is removed, which is the situation when the KX3

Re: [Elecraft] KX3 power supply

The KX3 will shut down if the voltage is too high. -- View this message in context: http://elecraft.365791.n2.nabble.com/KX3-power-supply-tp7612732p7612736.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft

Re: [Elecraft] KX3 power supply

Thanks for the info Bob, and it’s reassuring to see that the KX3 has protection for over voltage. One caveat with this PSU - I just tried to insert the DC plug from this PSU to the KX3, and I see it is too large for the KX3. Not a big deal, I will just cut it off and fit the correct size DC

Re: [Elecraft] KX3 power supply

I'd look to reduce the voltage about half a bolt before I'd use it with a KX3. Sent from my iPhone ...nr4c. bill > On Jan 18, 2016, at 3:43 PM, John Kramer wrote: > > Someone on this reflector suggested a power supply off eBay, that could be > used > with the KX3 about

Re: [Elecraft] KX3 power supply

And you could always put together a little inline circuit to drop the voltage down to 13.8-14.1 or so... 73, __ Clay Autery On 1/18/2016 3:17 PM, John Kramer wrote: > Thanks for the info Bob, and it’s reassuring to see that the KX3 has > protection for > over voltage. >

Re: [Elecraft] KX3 power supply brick

I’m not an expert on this, but from what I’ve observed is that some of these DC bricks can be very noisy. On Feb 10, 2015, at 12:57 PM, Lynn W. Taylor, WB6UUT k...@coldrockshotbrooms.com wrote: I just looked at four bricks floating around my office, and two of them are 12v. The other

Re: [Elecraft] KX3 power supply brick

W. Taylor, WB6UUT Sent: Tuesday, February 10, 2015 12:26 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KX3 power supply brick Has anyone tried a 12v brick like most laptops use for their KX3? Comments one way or another?? Thanks -- Lynn

Re: [Elecraft] KX3 power supply brick

I just looked at four bricks floating around my office, and two of them are 12v. The other two are 18v and 19v. The smallest one I have is 2a, which would probably charge the internal KX3 batteries. The bigger one might be okay for transmitting. That's why I specified 12v brick in my post.

Re: [Elecraft] KX3 power supply brick

Lynn, You really should use 13.8 volts or higher if you can. It will result in a cleaner signal (lower IMD). If you are using a supply with less than that voltage, it is wise to back down on the power a bit. 73, Don W3FPR On 2/10/2015 3:57 PM, Lynn W. Taylor, WB6UUT wrote: I just looked at

Re: [Elecraft] KX3 power supply brick

Lynn, I have used and was very happy with the PAE-Kx33 https://proaudioeng.com/products/pae-kx33-ac-power-supply/ https://proaudioeng.com/products/pae-kx33-ac-power-supply/ However, I acquired a few more Elecraft devices (PX3, KAT500, W2, and a relay for a larger amp), so I consolidated all

[Elecraft] KX3 power supply brick

Has anyone tried a 12v brick like most laptops use for their KX3? Comments one way or another?? Thanks -- Lynn __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] KX3 power supply brick

Most laptop bricks are 16V or higher, too much voltage for the KX3. wunder K6WRU CM87wj http://observer.wunderwood.org/ On Feb 10, 2015, at 12:26 PM, Lynn W. Taylor, WB6UUT k...@coldrockshotbrooms.com wrote: Has anyone tried a 12v brick like most laptops use for their KX3? Comments one way

Re: [Elecraft] KX3 power supply brick

I have run across some at lower voltages. Look around. I have checked some to make sure they didn’t rise too high under no load and for RFI. A number seem pretty good. These were all older ones. David K0LUM On Feb 10, 2015, at 2:34 PM, Walter Underwood wun...@wunderwood.org wrote: Most

Re: [Elecraft] KX3 power supply brick

I used 11 5000 mah NIMH's, 13.2v. Then used a Pepsi plastic bottle for a shrink wrap. But then I had a charger capable of charging the NIMH's. Make sure the laptop bat is 12v and not something bigger with a regulator inside the LT. Usually the charging is done by the LT I believe. If it is a

Re: [Elecraft] KX3 Power Supply Recommendations

n, I have a Gamma Research supply, rated 5 amps continuous and 20 amps intermittent - adequate for a K3 at 100 watts SSB or CW. I had a place for it in my KX3 travel case; it is quite small and light. It is expensive. I have no connection to Gamma Reserch. Monty K2DLJ Hi, I am looking

[Elecraft] KX3 Power Supply Recommendations

Hi, I am looking for a small/light weight 12v (110/220v) switching power supply for my KX3, rated for 3amps or more to take with me on the road. Any recommendations? More concerned with reliability and that it's quiet than I am cost. 73s Ron AF1Q

Re: [Elecraft] KX3 Power Supply Recommendations

Ron - If something similar to this is available in the USA, I would recommend this... http://www.rapidonline.com/Electrical-Power/36W-Volt-Adjustable-Multi-Output-PSU-85-2908 I used one of these with my KX3 during a recent visit to Florida. It operates from 100 to 240V input and is supplied

[Elecraft] KX3 power supply

Has anyone found a wall wart supply that works well with the KX3? Connected by DROID on Verizon Wireless __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] KX3 power supply

Bruce, Be cautious with wall wart supplies with the KX3. Many are not regulated and also throw out spurious responses that may not bother some other receivers, but the KX3 with its 'direct to baseband' architecture is quite susceptible to that kind of power supply interference. You will be

Re: [Elecraft] KX3 power supply

Of Bruce Manning Sent: Monday, January 14, 2013 4:15 PM To: elecraft Subject: [Elecraft] KX3 power supply Has anyone found a wall wart supply that works well with the KX3? Connected by DROID on Verizon Wireless __ Elecraft mailing list Home

Re: [Elecraft] KX3 power supply

Not a wallwart, but I just ordered a PS-1525 AllElectronics.com for $7. On Jan 14, 2013, at 2:14 PM, Bruce Manningbmann...@zitomedia.net wrote: Has anyone found a wall wart supply that works well with the KX3? Connected by DROID on Verizon Wireless

Re: [Elecraft] KX3 Power Supply

Another suggestion is the Gamma Research HPS-1a, which has a very small footprint and will power a 100 watt radio. So if you get an amp you will be covered. I have the HPS-1a and it powers my K3 just fine and is easy to transport for portable operation.

Re: [Elecraft] KX3 Power Supply

I got a lucky find: searched some old laptop computer power supplies in the bins at Halted Electronics, a surplus store, and found a 15V power supply that was a good match. Anything from 12V to 15V should work. It is very small and fits in well with the KX3. Josh KJ6PVN Sent from my iPhone

[Elecraft] KX3 Power Supply

Hi, I will like to get a small footprint power supply for my KX3 when in fix operation. Any suggestions ? Thank you, 73 DX de Juan TG9AJR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] KX3 Power Supply

Why not use the power supp;y that powers the rest of the shack equipment Nrmally in the hamshack environment the footprint is not important - put the power supply under the desk and it does not take up extra desk space. Most of the battery/power supply discussions here has been about

Re: [Elecraft] KX3 Power Supply

I already had the small MFJ-4103 for my FT817 and at 2.89 amps it works great so far. Bill WK6A Sent from my iPhone On Sep 14, 2012, at 5:40 PM, TG9AJR tg9...@gmail.com wrote: Hi, I will like to get a small footprint power supply for my KX3 when in fix operation. Any suggestions ?

[Elecraft] KX3 Power Supply

Several posts were recently made regarding the small Radio Shack switcher power supply (RS 22-507). Most comments seemed pretty favorable about it. Anyway, one of those came available in a local estate sale for one of my ham friends who recently passed away. I decided to give it a try, and it

[Elecraft] KX3 power supply question

Does anyone know if the KX3 can be used with an external 12-14 VDC power supply WITHOUT any batteries installed? I know some devices such as computers require the batteries to be inserted even if they are not any good, to complete the circuit. Leaving the batteries at home when traveling

Re: [Elecraft] KX3 power supply question

On Dec 29, 2011, at 11:03 AM, Lance Collister, W7GJ wrote: Does anyone know if the KX3 can be used with an external 12-14 VDC power supply WITHOUT any batteries installed? Yes. And if you have both, whichever has the higher voltage (external supply or internal battery) will be powering