Steve:
Based on the specs for the PS53, and based on what you and others have
shared, I am going to try the following approach, at least for now.
I'm going to take the RS35 off line, and use the PS53 to run my TS590, the
TW1, and MFJ998 auto-tuner.
I have a switching power supply that will be quite adequate for the TMV71A,
so will connect that rig to that supply separately.
I probably won't get to this until the week-end, but I'll be sure to let
everyone know what, if any difference I see in output power with this new
configuration.
Thanks to all for your patience as I continue to sort this through.
Tom Behler: KB8TYJ
-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Steve Forst
Sent: Sunday, November 22, 2015 10:10 PM
To: [log in to unmask]
Subject: Re: Kenwood PS53 Power Supply Manual
Tom,
The TW-1 current draw is minimal. The 998 auto tuner needs 1.5 amps for
tuning, but while the tuning process is going on the radio is only putting
out 10 or 15 watts, so current draw by the radio at this time is
low.
If running the amp, you are probably only driving with 50-60 watts,
depending on band, so plenty of headroom for the ps.
If you are going to obsess about the power supply, maybe limit your barefoot
operations to 80 watts. The other station will never know the difference,
and you will sleep better.
I think this supply will suit your needs, but don't think I would add more
stuff to be powered at the same time.
73, Steve KW3A
On 11/22/2015 9:48 PM, Tom Behler wrote:
> Steve:
>
> Thanks for the Universal Radio link.
>
> I'll definitely check it out.
>
> I run the TS590, my MFJ 998 auto-tuner, and my TW1 off the RS35 via a
> rig runner. My thought is to run those devices with the PS53, if I
> can get away with it. Of course, my ALS600 has its own separate power
supply.
>
> I also have the TMV71A connected to the RS35 via the rigrunner as
> well, but I do have a little switching power supply I could power that
with if needed.
>
> May ultimately have to bite the bullet and buy a new power supply, but
> don't want to do that unless it is absolutely necessary.
>
> At the same time, I don't want to risk damaging any equipment, and
> creating bigger problems.
>
> Tom Behler: KB8TYJ
>
>
> -----Original Message-----
> From: For blind ham radio operators
> [mailto:[log in to unmask]]
> On Behalf Of Steve Forst
> Sent: Sunday, November 22, 2015 9:34 PM
> To: [log in to unmask]
> Subject: Re: Kenwood PS53 Power Supply Manual
>
> Tom,
>
> Here is a link to the Universal Radio page on the discontinued power
> supply, with some basic specs:
>
> http://www.universal-radio.com/catalog/hamps/2816.html
>
>
> I'm not sure what the 16 amp raiding you are finding on the unit
> represents. As a comparison" My old Astron RS-20 was rated at 16 amps
> continuous (I think until the cows come home) and rated at 20 amps
> for a shorter duty cycle. You shouldn't have any problem with your
supply.
> Maybe running 100 watt RTTY would put a strain on it, but CW is
> less of a duty cycle, and SSB even less.
>
> I think you run other stuff off your main station supply, so a 35
> amp unit is probably better, but for what you are trying to do now in
> testing, just hook it up and see how it goes.
>
>
> I would try and reconnect with as much of the existing wiring as
> possible to the new supply, so you are comparing apples to apples.
>
> 73, Steve KW3A
>
>
>
> On 11/22/2015 9:10 PM, Tom Behler wrote:
>> Hello, everyone.
>>
>>
>>
>> I tried to do a google search for the manual for the Kenwood PS53
>> power supply, in order to get the specs on the unit, but ran into an
>> interesting problem. The manual is a scanned image file on the two
>> web sites I found, and when I tried running it through the Jaws
>> Convenient OCR process, the conversion process stopped in mid-stream.
>> Then, I tried sending the file
> to
>> roboBraille, and got a message saying the conversion process could
>> not
> occur
>> because the document was "read protected".
>>
>>
>>
>> Once again, if someone has a text version of the manual, please send
>> it my way.
>>
>>
>>
>> [log in to unmask]
>>
>>
>>
>> In the meantime, I'll keep seeing what I can do here.
>>
>>
>>
>> Tom Behler: KB8TYJ
>>
>>
>>
>
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