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Custom Built

Country:  Canada
Manufacturer / Brand:  De Forest (DeForest) Crosley Radio, Consolidated Industries; Toronto
Year: 1936/1937 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 12: 6K7M 6A7M 86M 6F7M 6F7M 75M 6F7M 86M 86M 6F6M 6F6M 5Z3
Main principle Superhet with RF-stage; ZF/IF 456 kHz; 2 AF stage(s)
Tuned circuits 9 AM circuit(s)
Wave bands Broadcast, Short Wave(s) and Police.
Power type and voltage Alternating Current supply (AC)
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: Custom Built - De Forest DeForest Crosley
Material Wooden case
Notes The last 86M tube listed is used as a voltage regulator. This model uses a push-pull audio output circuit. The De Forest Royal Star and Jupiter are electronically identical to this set.
Circuit diagram reference Radio College of Canada
Mentioned in RCC Rogers-Majestic section page 23 & 24

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, 104 with images and 169 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.