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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