The worst thing that will happen, is the magic smoke will fall out. And you can't put it back in.

Sent from my iPhone this time 

> On Nov 22, 2015, at 3:40 PM, Tom Behler <[log in to unmask]> wrote:
> 
> Howard:
> 
> That's what I thought, which I was a bit surprised at the 16 amp output for
> the PS53.  If I'm interpreting them correctly, the TS590 spects say that on
> high power, the rig uses less than 20 amps, but I'm not sure exactly what
> that means.
> 
> You are encouraging me to just give the PS53 a try here, to see what
> happens.
> 
> Tom Behler: KB8TYJ
> 
> 
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Howard, W A 9 Y B W
> Sent: Sunday, November 22, 2015 5:08 PM
> To: [log in to unmask]
> Subject: Re: Question On Kenwood PS53 Power Supply
> 
> Tom,
> 
> I am using said Kenwood power supply with my TS-590.  It was originally
> purchased to go with my TS-570.
> 
> Both radios are 100 watt radios.
> 
> Howard #3
> W A 9 Y B W
> 
> 
> ----- Original Message -----
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Sunday, November 22, 2015 3:04 PM
> Subject: Question On Kenwood PS53 Power Supply
> 
> 
>> Hello, everyone.
>> 
>> 
>> 
>> I think I'm becoming more and more convinced that something might be going
>> wrong with the trusty Astron RS35 linear power supply that I have been 
>> using
>> here in the home shack for the past 18 years.
>> 
>> 
>> 
>> Today, I had my XYL check the meters on the supply when keying up in RTTY
>> mode with 100 watts with my TS590, and the meters on the supply read 14
>> volts, with only a draw of 11 amps.  I did this on a frequency for which 
>> my
>> DXCC antenna is resonant on 40 meters.  My SWR was 1.0 to 1, both 
>> according
>> to  the TW1 and the meter on the TS590.  I then checked my output power
>> reading.  According to the TW1, it was 57 watts, and according to the 
>> TS590
>> meter, the output power was 75 watts.
>> 
>> 
>> 
>> After our lenghthy discussions several weeks ago, when I noticed output
>> power problems with my TMV71A, I tried my best to clean all DC power
>> connections.
>> 
>> 
>> 
>> 
>> 
>> My next step will be to try another power supply, just to see if that 
>> makes
>> a difference, which brings up a question.
>> 
>> 
>> 
>> Does anyone on list have a Kenwood PS53 power supply?  I obtained this
>> supply from an estate sale several years ago, and I think it is meant to 
>> be
>> used with the Kenwood TS570, which I also obtained at that time.
>> 
>> 
>> 
>> I had my XYL check the power draw ratings on the supply, and she told me 
>> it
>> says 16 amps.  This seems a bit low to me, and may not be adequate for the
>> TS590 on the full 100 watts.
>> 
>> 
>> 
>> If anyone has accurate power draw ratings, or an accessible manual for the
>> PS53 supply, I'd appreciate the additional info.
>> 
>> 
>> 
>> I'm hoping to do some further experimenting with all of this during the
>> upcoming Thanksgiving break.
>> 
>> 
>> 
>> Tom Behler: KB8TYJ
> 
> 
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