12-18-2017, 08:18 AM
One simple way to get the isolation, a chassis, and some of the chassis parts you need is to find an old Blonder-Tongue (or similar) UHF Converter. I hope it's not sacrilege to suggest this....
Many of the UHF converters have two miniature tubes, so there's your tube sockets, already set into a chassis. Many of them also have a power transformer with a 120vac primary and 6.3vac and 120vac secondaries. There's your power sources for the "A" and "B" voltages. The converter has a bakelite cabinet that already looks vintage, so all you have to do is wire it up and set it near the battery radio, then hook it up. You don't really even have to hide it. If you use LM317 style regulators for the voltages (the appropriate ones of course), then you can use the controls holes in the cabinet and chassis for voltage control pots, and even that will look authentic to the unsuspecting viewer.
just a thought....
Many of the UHF converters have two miniature tubes, so there's your tube sockets, already set into a chassis. Many of them also have a power transformer with a 120vac primary and 6.3vac and 120vac secondaries. There's your power sources for the "A" and "B" voltages. The converter has a bakelite cabinet that already looks vintage, so all you have to do is wire it up and set it near the battery radio, then hook it up. You don't really even have to hide it. If you use LM317 style regulators for the voltages (the appropriate ones of course), then you can use the controls holes in the cabinet and chassis for voltage control pots, and even that will look authentic to the unsuspecting viewer.
just a thought....
