I'm hoping someone can provide some info on a radio I just acquired. It's a Sterling, case appears to be circa 1925 with a painted copper face, has sockets for 6 tubes one of which is elevated like a shock absorber. This socket is small in diameter and leads me to believe the tubes might be ux199's. The coils are "figure eight" and mounted under the chassis. I haven't been able to find anything this old under the sterling name and would appreciate any info from the masters. Thanks

Dan

Most early TRF battery operated radios are not in Rider.

The tube elevated and shock mounted is detector in your radio. It's mounted this way to reduce microphonics.

If your radio uses UX199's sockets will be small but accept 4 pin bases. Some early tubes were UV199's. These require special sockets. Both tube types require 3 - 3.3 volts on the filament rather than 5 like 201A's.

Although you haven't found a schematic Stewart Warner 300 series radios should be similar. They are in Rider and under Resources, above.

Norm

:I'm hoping someone can provide some info on a radio I just acquired. It's a Sterling, case appears to be circa 1925 with a painted copper face, has sockets for 6 tubes one of which is elevated like a shock absorber. This socket is small in diameter and leads me to believe the tubes might be ux199's. The coils are "figure eight" and mounted under the chassis. I haven't been able to find anything this old under the sterling name and would appreciate any info from the masters. Thanks

Norm,
Thank you very much for the info. The sockets are definitly UX. I'll check out the SW 300 series. Y'all provide valuable info to us amateurs!!

:Dan
:
: Most early TRF battery operated radios are not in Rider.
:
: The tube elevated and shock mounted is detector in your radio. It's mounted this way to reduce microphonics.
:
: If your radio uses UX199's sockets will be small but accept 4 pin bases. Some early tubes were UV199's. These require special sockets. Both tube types require 3 - 3.3 volts on the filament rather than 5 like 201A's.
:
: Although you haven't found a schematic Stewart Warner 300 series radios should be similar. They are in Rider and under Resources, above.
:
:Norm
:
::I'm hoping someone can provide some info on a radio I just acquired. It's a Sterling, case appears to be circa 1925 with a painted copper face, has sockets for 6 tubes one of which is elevated like a shock absorber. This socket is small in diameter and leads me to believe the tubes might be ux199's. The coils are "figure eight" and mounted under the chassis. I haven't been able to find anything this old under the sterling name and would appreciate any info from the masters. Thanks