[ARC5] Receiver AC power supplies.

[Kenneth G. Gordon]

On 11 Dec 2014 at 16:02, DSP3 wrote:

> Ken,
> 
> Truth told, I never considered that excellent  idea.  I don't have any 
> hangar queens at this time, but, as mentioned, I'm flush with chokes for 
> the moment.   I regularly use the back-to-back transformer trick and it 
> works well, to be sure.  I came across some 24v 3A transformers years 
> ago and they still do a fine job.  RatShak used to have a nice 12v 3A 
> piece but, alas, that item is apparently gone forever...

RS also had some very nice 25.2 VAC CT at 3 amp jobs too...haven't seen 
them in a while... :-(

Some time ago, I somehow ended up with several ex-military small power 
supply chokes all NIB. They are unmarked, but appear to be in the right 
area for specifications.  They have the Signal Corp (SC7434?) markings in 
orange on them, are rectangular and painted with black wrinkle, and the 
legend, A-3502 is printed on the terminal end. According to my cheap 
modern LC meter, they are 34 H, which seems a bit high to me....but may 
not be. I have 5 of the little beggars, but have not yet had an occasion 
to use any of them.

They look as though they were made by National...maybe.

The wire coming out from inside at the terminals is stranded and looks to 
be about #20 or so with fairly thick insulation. I have no idea of their 
current capability.

Ken W7EKB