[ARC5] Power Supplies for the ARC-5 Rx.

[Dennis Monticelli]

Hi Jess,

I share your affection.

Why not just use a stack of 9V batteries for B+?  Putting more than about
70V on the receiver does not improve performance much and the caps will
thank you for it.  You can power the filaments off any convenient LV power
supply.  This is usually the way I power them.

On Fri, Jan 28, 2011 at 10:56 AM, Jess Lewis <kr4oj at bellsouth.net> wrote:

> ?Hello,
> I just joined this list. I have several old ARC-5 Receivers (various freqs)
> and a couple of the transmitters. Most from E-Bay, in the past year or so. 2
> of each are "un-hacked" :o)) and I also have a couple of the Dynamotors for
> the receivers.
>
> I have loved the old units, since I first became aware of them, from CQ
> magazine, back in the 50's. Got my ham license in 1965, and always meant to
> convert a few & get on the air. But, alas, I found a deal on some used
> Heathkit stuff, went that way, and never got back to the ARC5s except a
> Q5'er, using the BC453 & a converter (not really a "Q5er", but a pretty good
> rx for 40 meters.)
>
> I would like to try and put some of the stuff on the air, without hacking
> up the unit, anymore than I have to, mainly for cosmetic and nostalgia
> purposes. I know that several , probably most of the caps, will need
> replacing, and Ken Gordon (W7EKB), sent me some good ideas about opening
> various potted units, replacing the internal caps, then re-potting.
>
> My ACTUAL question (and reason for posting) is about power supplies for the
> receivers. Recently, I saw on E-Bay, several neat little power supplies,
> built on the original Dynamotor frames, and would plug into the original
> Dynamotor socket. Several have sold already, actually for an unbelievable
> price :^)).
> I understand that the original power supply units were built and offered
> for sale, by Fair Radio Sales, in Lima, Ohio.  They, of course, no longer
> have any. Does anyone know of a possible source for these PS units?  Even a
> source for the transformer?  I have the dynamotor base and most of the parts
> to fab one up, if I could only find the transformer.
> Any help or suggestions are welcome.
>
> Thanks for listening.
> 73,
> Jess  KR4OJ
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