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681

681; His Master's Voice (ID = 24396) Radio
 
681; His Master's Voice (ID = 24397) Radio
 
681; His Master's Voice (ID = 1043416) Radio
 
681; His Master's Voice (ID = 1043417) Radio
681; His Master's Voice (ID = 1781840) Radio
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681; His Master's Voice (ID = 1781840) Radio
His Master's Voice: 681 [Radio] ID = 1781840 933x806
Select picture or schematic to display from thumbnails on the right and click for download.
For model 681, His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB
 
Country:  Great Britain (UK)
Manufacturer / Brand:  His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB
Year: 1938/1939 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: W21 HL21 HL2 KT2
schematic requested
Main principle TRF with regeneration
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Storage and/or dry batteries / 2 & 90 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Radiomuseum.org Model: 681 - His Master's Voice Masters,
Material Leather / canvas / plastic - over other material
Shape Portable set > 8 inch (also usable without mains)
External source of data E. Erb 3-907007-36-0
Circuit diagram reference Die «Thali Schemasammlung» führt das Modell.
Literature/Schematics (1) Trader sheet 339


All listed radios etc. from His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB
Here you find 401 models, 277 with images and 236 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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