[ARC5] ARC5 Receiver Power Supply

[Nels Anderson]

I am helping an older ham friend clean out his garage, which includes 
some ARC5 related equipment. One item is a very nicely built home-brew 
power supply for ARC5 type receivers. It appears to be designed to 
directly replace the dynamotor and has a connector that would plug in 
right where the dynamotor would normally go.

It's fairly simply, consisting of two transformers, a single OB2 tube 
and associated parts. Now the mystery is the extra pieces. There is an 
octal socket and a cable with an RCA connector on the end. He remembers 
that the socket was for a magic eye tube and the RCA connector would 
have connected somewhere in the receiver. But he cannot remember the 
details or exactly what eye tube type was used or what the function was.

I can't believe this is an original design, so I bet it was published 
somewhere. I've done some Internet searching but have turned up nothing 
so far. Does this description sound familiar to anyone here and if so 
can you point me to more information on it?

The goal would be to sell the supply to someone who can use it, but I'd 
like to be able to accurately describe what it is.

73 Nels K1UR