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29-AC ; United American (ID = 772549) Radio
29-AC ; United American (ID = 772550) Radio
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29-AC ; United American (ID = 772549) Radio
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Country:  United States of America (USA)
Manufacturer / Brand:  United American Bosch (Magneto Corporation); Springfield (MA)
alternative name
American Bosch Magneto
Year: 1928 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 226 226 226 227 226 210_UX-Triode 281 281
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown)
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Alternating Current supply (AC)
Power out
from Model: 29-AC - United American Bosch Magneto
Material Wooden case
Shape Console with any shape - in general

One dial (primary tuning control knob)

External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

All listed radios etc. from United American Bosch (Magneto Corporation); Springfield (MA)
Here you find 412 models, 158 with images and 269 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.