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Pittsburg Radio Supply House |
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Pittsburg Radio Supply model SP-2 ca: 1922
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From my collection, a scarce and unusual receiver, regenerative RF circuit, 2 RF stages, detector and optional Audio Amp.
I think in can be said
that it's one of the first radios with an accessory "plug-In"
module". Yes, it has an optional "plug-in" audio adaptor to increase
the audio signal enough to drive a loud-speaker.
Tube line-up; UV-201 RF & Audio, UV200 detector.
| RadiolaGuy's Collection, not for sale |
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