Selector
RF Amplifier
Power converter
Speaker
Tubes
Service Notes
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| Model 870 Equasonne | ||||||||||
| Download schematics for the 870. Selector RF Amplifier Power converter Speaker Tubes Service Notes |
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| No picture available. | ||||||||||
| If you have a nice picture of a 870 Equasonne that I could use, please e-mail me. | ||||||||||
| The model 870 (manufactured 19??) apparantly came in an AC version only. It uses the same chassis as Models 574 and 111-A. The 870 is a 13 tube radio. The RF Amplifier unit is the same as that found in most models (ie. 931 type). The tuning selector unit is of the type which houses an additional 484 tube. This particular tuning selector was also used in the majority of the other Equasonne models (103, 111-A, 235, 301-A, 564, 570, 574, 578, 600, 610, 620, 737, 740 and 750). Models 111-A, 574 and 870 differ from other equasonne models in the use of an additional audio connector unit which houses an input audio transformer and a pair of 226 tubes. This unit provides an extra stage of audio frequency amplification. | ||||||||||