Go to
rec.antiques.radio+phono

they can help you

"tack" wrote in message
oups.com...
I have a few of these radios; I'm wanting to put together some battery
packs for them. Does anyone have a good schematic for a DC-DC
converter to take 9vdc to 90vdc?
I'm also going to need to make up a 4-prong connector for the battery
packs; any ideas anyone? Can the connectors be purchased? Thanks a
lot