Sonata Ch= AM70

Country:  Canada
Manufacturer / Brand:  De Forest (DeForest) Crosley Radio, Consolidated Industries; Toronto
Year: 1928/1929 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5:
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown); 1 AF stage(s)
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Storage and/or dry batteries / 4.5 & 135 & 90 Volt
Loudspeaker - This model requires external speaker(s).
Power out
from Model: Sonata Ch= AM70 - De Forest DeForest Crosley
Material Wooden case
Notes An AC power supply was available for this model. The Concerto, Opera, Nocturne (High Boy) and Duet (Phono-Combo) are electronically identical to this model.
Circuit diagram reference Radio College of Canada
Mentioned in RCC De Forest -Crosley section page 5 & Cross Reference

Model page created by Robin Roeckers. See "Data change" for further contributors.

All listed radios etc. from De Forest (DeForest) Crosley Radio, Consolidated Industries; Toronto
Here you find 250 models, 105 with images and 169 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.