Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

What air conditioner? What do you need that for? > On Oct 29, 2015, at 3:49 PM, Marc Veeneman wrote: > > I agree with Jim, especially during air conditioning season. Why pay the > electric company to heat with an Astron while I'm paying to cool with a > Carrier? > >

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Just another accolade for the Astron PS. I bought a 35VM in 1980 to run my then new TS-180S and it has worked over the years without fail until last year when a couple pass transistors finally died...that is 34-years without failure! On my last job (retired in 2009) we had lots of Astron

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Hi Peter, I bought the Astron RS-35M for my $4000 K3 in 2008. I've never turned it off and I've never even given it a second thought. No fan, no RF noise, just reliable DC. 73, Mike K2MK Peter Pauly wrote > I'm looking at the Meanwell power supplies because they are cheap and seem > to be

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

An Astron SS-30M is a much better supply and will supply the required current. It has excellent regulation and IS NOT a noise generator. Plus it has a volt meter and amp meter on the front panel. 73 Bob, K4TAX K3S s/n 10163 On 10/29/2015 6:51 AM, Peter Pauly wrote: I'm looking at the

[Elecraft] Which of these would make the best power supply for the K3(S)?

I'm looking at the Meanwell power supplies because they are cheap and seem to be well regarded. I've come up with these two choices, feel free to give more suggestions of other models. I've seen talk on this reflector of supplying more than 13.8V to the K3S so that's why I'm looking at the 15V

[Elecraft] Which of these would make the best power supply for the K3(S)?

For powering my Elecraft K3S and P3, I am using the Astron RS-35 power supply feeding a West Mountain DC-to-Go PWR gate PG40S and Rigrunner 4007U with a 79 Amp hour battery. Living on an island, we have many spikes and losses of power during the year. I figure that if I'm spending a sizable

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Yes, life is too short to power a radio from a cheap power supply. Remember, the life and performance of your radio depends on it. Bob, K4TAX Sent from my iPhone > On Oct 29, 2015, at 10:32 AM, gerald finn wrote: > > For powering my Elecraft K3S and P3, I am using

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

I have an Astron 35 amp - been on 24/7 since the middle 80s. Also have an Astron 20 amp as a backup. Due to the age of the Astron, I decided it was time to replace it for the K3/P3 only. I bought the SS30-DV. It is small and quiet (physically quiet and RF quiet) and meets my needs nicely. The

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

My suggestion and test is to measure the voltage between the Astron power supply GRD terminal and the GRD terminal on the radio. Any value over 0.5 volts, when in CW mode, key down at 100 watts is a situation that should be investigated and improved. 73 Bob, K4TAX K3S s/n 10163 On

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

I worked as an engineer and in marketing for a major power supply company. I did many design reviews and cost analysis on various MW power supplies. The designs are straight forward and their derating guidelines were not as robust as the ones I used. One area that they "just met spec" was for

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Astron is another power supply that runs on the "edge". People that use them at repeater sites on mountains derate them 50% plus so they do not have to run to the mountain and replace power supplies. A RS-35M in a controlled environment will do the job for a K3. I added a "hard" crowbar circuit

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Jim: Is there a particular Artesyn power supply model that you’d recommend? In taking a quick review of their website, they offer a 12 VDC and 15 VDC output in the LCM300 series which provides 300 watts (20 amps at 15 VDC) and a LCM600 series offering 600 watts (40 amps at 15 VDC). I presume

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

People might run them on the edge, but IMX with commercial repeaters Astrons are conservatively rated. Long ago I came to the conclusion was that at least some people thought a rating such as 20A meant it could deliver 20 amps continuously. Astrons, as their data sheet shows, are rated ICAS

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Good link on power supplies and repeater builds. http://www.repeater-builder.com/astron/astron-repair/astron-repair.html Jim W6AIM . -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire Sent: Thursday, October 29, 2015 11:17 AM To:

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

> On Oct 29, 2015, at 8:41 AM, Robert wrote: > > Yes, life is too short to power a radio from a cheap power supply. > Remember, the life and performance of your radio depends on it. > > Bob, K4TAX > > Ditto! There is nothing better than a rock solid Astron power

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

I deleted all but the last post in this thread On 10/29/2015 1:41 PM, Phil Hystad wrote: There is nothing better than a rock solid Astron power supply. I am yet another guy who leaves the Astron on 24x7 unless we leave for vacation of more than a day. My Astrons (I have two) are Linear

Re: [Elecraft] Which of these would make the best power supply for the K3(S)

See item # 220648795286. I have two and they work well. The seller stands behind their 2 year warranty and usually just ships a new replacement. They hold up well. 36 Amp 12 Volt 13.8V DC Regulated Power Supply 12V Real USA MegaWatt® I have no vested interest in these other than as a

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

On Thu,10/29/2015 1:41 PM, Phil Hystad wrote: I am yet another guy who leaves the Astron on 24x7 unless we leave for vacation of more than a day. You might not do that if you lived in W6, where, thanks to Enron, the cost of power is MUCH higher than in most of the US. In Chicago, my worst

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

On Thu,10/29/2015 2:13 PM, Fred Jensen wrote: The intermittent problem turned out to be paint under a lug with a loose screw. That seems to be a very common problem with Astrons -- the power system "green wire" (safety ground) is soldered to the mounting lug of a terminal strip, which is

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

We're quite lucky here in nawthrun Vuhginya to be on an electric coop where our juice runs between 11¢ to 12¢ per kw-hr. However, I personally find it distasteful to leave a linear power supply "idling" 24/7 not running anything. In reality, I'm just plain too cheap to waste the power to keep a

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

I agree with Jim, especially during air conditioning season. Why pay the electric company to heat with an Astron while I'm paying to cool with a Carrier? Switchers win this battle. -- Marc W8SDG > On Oct 29, 2015, at 5:18 PM, Jim Brown wrote: > >> On

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Yes "some resistance" might be OK, however several meghoms is not. This gets me to thinking, in ham radio models, wonder how many, which ones, and such can withstand a 5KV to 10KV ESD discharge on any knob, screw or connector and survive. That is one of the standards we had to meet with

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Folks - we're hitting the posting limit for this topic. To avoid overload for other readers, lets wind it down tonight and then close the thread.. 73 Eric List Moderation, Inc. /elecraft.com/ On 10/29/2015 2:25 PM, Jim Brown wrote: On Thu,10/29/2015 2:13 PM, Fred Jensen wrote: The

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Just extremely busy today here at Elecraft HQ.. :-) 73, Eric /elecraft.com/ On 10/29/2015 5:16 PM, Peter Pauly wrote: Eric must be on vacation. This is where is would be forcing me to close the thread. __ Elecraft mailing list

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

I agree the Astrons are hard to beat I use a pair of 70A supplies for my station and have several others a 35 and 2 20 amp supplies for spares. Fred N0AZZ Sent from my iPad > On Oct 29, 2015, at 3:41 PM, Phil Hystad wrote: > > >> On Oct 29, 2015, at 8:41 AM, Robert

Re: [Elecraft] Which of these would make the best power supply for the K3(S)

MegaWatt seems to be implying with "Real USA," posting a copy of their USA trademark registration, and warnings about Chinese copies, that this is a U.S. made product. However, no where do they actually state that their product is Made in USA. The style of construction looks like it is made

Re: [Elecraft] Which of these would make the best power supply for the K3(S)

I looked at those units and saw no reference to any safety or emissions certifications. 73 Bob, K4TAX K3S sm 10163 On 10/29/2015 6:31 PM, Josh Fiden wrote: MegaWatt seems to be implying with "Real USA," posting a copy of their USA trademark registration, and warnings about Chinese copies,

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Sorry about my mis-typing of POWER and POWDER... Dang, that's the first keyboard error I've made since typing class in H.S. in 1960. Yes conductive POWDER coating material is available, however it is more expensive and more difficult to use.When I worked for the JA's , how well I

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

The problem is that it still has some resistance George, W6GF Sent from my iPad > On Oct 29, 2015, at 5:09 PM, Bob McGraw - K4TAX wrote: > > Sorry about my mis-typing of POWER and POWDER... Dang, that's the first > keyboard error I've made since typing class in H.S.

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

Eric must be on vacation. This is where is would be forcing me to close the thread. On Thu, Oct 29, 2015 at 8:14 PM, George Fritkin via Elecraft < elecraft@mailman.qth.net> wrote: > The problem is that it still has some resistance > > George, W6GF > > Sent from my iPad > > > On Oct 29, 2015, at

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

It is amazing how many times I've found this to exist and how many times that I've written about this on various reflectors. The power coat paint on the chassis makes for an excellent insulator. If you have an Astron power supply and you have not checked to see that third pin ground is

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

First of all, it is POWDER coating not POWER coating. Secondly you can get conductive POWDER coating material. Unusual to find such and many people do not like to use it. George, W6GF Sent from my iPad > On Oct 29, 2015, at 4:49 PM, Bob McGraw - K4TAX wrote: > > It is

Re: [Elecraft] Which of these would make the best power supply for the K3(S)?

I never assumed that Astron assumed their linear supplies were in metal enclosures for the purpose of shielding. They are, after all, linear supplies that would not normally require shielding. I'm not familiar with their switchers. Does bonding he case together reduce the RFI they create? It was