[MRCA] AC power supply transformer

[Rich Arland]

Hi Mark & Robert:

Yeah that epiphany hit me about 0300 this morning. Located some Hammond units at Antique Electronics Supply. I also have a source locally (just got an email from him) about several small analog PSUs in various states of disrepair and may make a deal for one of them. They are pretty simple to troubleshoot.

Thanks to both of you for replying.

Vy 73

Rich  K7SZ

________________________________
From: Mark K3MSB <mark.k3msb at gmail.com>
Sent: Wednesday, October 23, 2019 8:49 AM
To: Rich Arland <k7sz at live.com>
Cc: mrca at mailman.qth.net <mrca at mailman.qth.net>
Subject: Re: [MRCA] AC power supply transformer

Good morning Rich

Try searching for "12V Filament Transformer";   that brings up a lot of stuff to wade through.

Here's one possible source:

https://www.hammfg.com/electronics/transformers/power/166

Also, search for "toroidal transformer";  these are carried by all the big vendors (Mouser, Newark etc) and they are available in the secondary voltage and current ratings you're looking for.

You also may try putting a "Wanted" listing on qth.com<http://qth.com>.   Additionally,  the "Classifieds" section of the Antique Radio Forum (https://www.antiqueradios.com/) is always a good place to find parts.

I looked for "12V filament transformer" on eBay;  bunch of stuff came up but I didn't work through it all.

Hope this helps OM....

73 Mark K3MSB

On Wed, Oct 23, 2019 at 2:50 AM Rich Arland <k7sz at live.com<mailto:k7sz at live.com>> wrote:
I am perplexed.....I need a 120VAC to 12 or 15VAC power transformer capable of sustained output of 5A. I have been searching the interweb and all I can seem to find are "wal-warts", switching psu, and computer power supplies. The really sad part of this saga is that about 2 yrs ago I gave away a 1 cubic foot box of all sorts of power transformers!

So, does anyone out there in MilCom land happen to have a transformer that I can make an AC PSU capable of delivering 12-14VAC at 5 amps? If so, please contact me off-list and we'll set up a deal.

(And "yes" this is for my TRC-77A)

Vy 73

Rich  K7SZ
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