Tom,
It occurs to me that I have an almost never used Icom switching
supply which I am not using. I have used it and it works just fine
with the average 100 watt transceiver. As i recall it is rather
small and has a very uiet fan. And I have not heardd any switching
noise from it anywhere I have tuned.
Perhaps a choice for a camper, freeing up an Astron for the roomier shack.
If you're interested, what do you have to trade? I'm guessing in the
$75 range. And by the way it has the plug which mates to the
standard Kenwood power plug as well as many of the Ecom units, on the
end of a thirty inch or so power cord and uses a standard computer
power plug for its 110 volt input.
If this doesn't work for you, no big deal.
Pat ByrneAt 12:23 PM 6/2/2012, you wrote:
> Yup, I'm thinking about that very idea, Pat!
>
>Tom Behler: KB8TYJ
>
>----- Original Message -----
>From: "Pat Byrne" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Saturday, June 02, 2012 1:21 PM
>Subject: Re: Could it be time to replace My old trusty Astron RS35 Power
>Supply?
>
>
> > In the same vein Tom, we stopped at our oldest sons this morning and
> > he was under his 2002 Ford Taurus replacing a rear spring. He is not
> > a mechanic by trade but is very competent, perhaps more so than a lot
> > of people you pay professionally but he is so tired of fixing old
> > cars!! He has a 2002, his wife a 20005 Ford full sized van and three
> > of their kids early 2000 Tauruses and Focuses!! We were kidding him
> > about getting out the checkbook and replacing all of them!! Wwith
> > one just out of college, one just beginning college and two more in
> > iigh school, that ain't going to happen!, but the point is that you
> > can fix things on and on and they are still old and break!! Cut John
> > a good deal and help out Astron's bottom line and make it simple on
> > yourself!!
> > Pat, K9JAU At 09:41 PM 6/1/2012, you wrote:
> >> Thanks, Colin.
> >>
> >>I'm not too handy with soldering components and the like, so I may have to
> >>go the purchasing route.
> >>
> >>Perhaps if someone wants to use this one as a back-up, as John suggested
> >>earlier, I could make a deal and sell it at a nicely discounted price.
> >>The
> >>supply is over 14 years old, and has been used rather hard, so the fact
> >>that
> >>caps, a regulator, or something may be starting to fail is not totally
> >>surprising to me.
> >>
> >>Again, I'll think on this for a few days.
> >>
> >>Keep those thoughts and ideas coming!
> >>
> >>73 from Tom Behler; kB8TYJ
> >>
> >>----- Original Message -----
> >>From: "colin McDonald" <[log in to unmask]>
> >>To: <[log in to unmask]>
> >>Sent: Friday, June 01, 2012 10:21 PM
> >>Subject: Re: Could it be time to replace My old trusty Astron RS35 Power
> >>Supply?
> >>
> >>
> >> > could be, probably the caps, but it also sounds allot like a regulator
> >> > failing.
> >> > if the voltage is wandering all over the place like that, then the
> >> > regulator
> >> > isn't doing it's job, and that isn't just some caps.
> >> > I can see maybe a few volts of fluctuation when a load is put on the
> >> > supply
> >> > if the caps were going...but he said down to 2 or 3 volts? that's a
> >> > regulator.
> >> > Probably a pretty cheap fix if you want to go that route Tom...maybe
> >> > trickier to fix yourself if your not used to soldering etc...but the
> >> > regulator components are pretty simple.
> >> >
> >> > 73
> >> > Colin, V A6BKX
> >> > ----- Original Message -----
> >> > From: "John Miller" <[log in to unmask]>
> >> > To: <[log in to unmask]>
> >> > Sent: Friday, June 01, 2012 8:15 PM
> >> > Subject: Re: Could it be time to replace My old trusty Astron RS35
> >> > Power
> >> > Supply?
> >> >
> >> >
> >> >> It's probably the capacitors going in it, that happens after a while
> >> >> and
> >> >> they're easy to replace only held to the board with a couple screws.
> >> >> Parts
> >> >> can still be gotten. I know a few who've had that problem. If you
> >> >> decide
> >> >> to
> >> >> get a new one, probably another of the same thing is your best bet or
> >> >> going
> >> >> up on the amperage though I used to run all that and then some off
> >> >> mine
> >> >> and
> >> >> it never complained. If you get to the point you just don't want to
> >> >> deal
> >> >> with it and do want to buy something else, Let me know, if my front
> >> >> steps
> >> >> don't cost too much I'll buy it off you and fix it up for a backup.
> >> >> ----- Original Message -----
> >> >> From: "Tom Behler" <[log in to unmask]>
> >> >> To: <[log in to unmask]>
> >> >> Sent: Friday, June 01, 2012 9:54 PM
> >> >> Subject: Could it be time to replace My old trusty Astron RS35 Power
> >> >> Supply?
> >> >>
> >> >>
> >> >>> Hi, folks.
> >> >>>
> >> >>> I know we have had similar discussions on the list before, but
> >> >>> tonight I
> >> >>> feel I have discovered something that may be of interest to others.
> >> >>>
> >> >>> Basically, over the past few days, I have found that even when
> >> >>> transmitting
> >> >>> on the resonant frequency of an antenna with a 1.0 to 1 SWR, my TS590
> >> >>> seems
> >> >>> to fold back to an output power of approximately 50 watts. These
> >> >>> power
> >> >>> readings have been obtained from both the meter on the TS590, and my
> >> >>> TW1
> >> >>> talking watt meter.
> >> >>>
> >> >>> I thoroughly checked all coax and DC power connections, but
> >> >>> everything
> >> >>> seemed ok.
> >> >>>
> >> >>> I measured the power supply's voltage first with no load, and it was
> >> >>> 13.35
> >> >>> volts consistently. However, when I transmitted in RTTY mode with
> >> >>> 100
> >> >>> watts, thereby putting a full load into the circuit, the DC voltage
> >> >>> readings
> >> >>> started fluctuating all over the place. They ranged from a high of
> >> >>> 10
> >> >>> volts, to as low as 2 or 3 volts. Then, on a whim, I connected the
> >> >>> Kenwood
> >> >>> PS53 power supply that I got with the Kenwood 570 I purchased from
> >> >>> the
> >> >>> estate sale in our area, and the output power readings were a very
> >> >>> solid
> >> >>> 100
> >> >>> watts, even when the rig was keyed down continuously for several
> >> >>> minutes.
> >> >>>
> >> >>> I know there is a way to adjust the voltage in the RS35, but with the
> >> >>> foldback of the ts590, and the fluctuations in voltage readings, I'm
> >> >>> now
> >> >>> getting a bit nervous about using the RS35 as my main supply.
> >> >>>
> >> >>> Does anyone have any thoughts or similar experiences to report?
> >> >>>
> >> >>> If I do need to be in the market for a new power supply, I have
> >> >>> several
> >> >>> requirements:
> >> >>>
> >> >>> 1. I'd like it to be a linear supply
> >> >>>
> >> >>> 2. I'd like it to be something that could deliver at least 40 amps
> >> >>> continuously through my rigrunner, because I sometimes run the TS590,
> >> >>> my
> >> >>> TMV71A, and my TMV7A packet set-up simultaneously.
> >> >>>
> >> >>> If anyone has specific suggestions regarding a supply that I might
> >> >>> wish
> >> >>> to
> >> >>> consider, please let me know.
> >> >>>
> >> >>> 73 from Tom Behler: KB8TYJ
> >> >
> >
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