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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