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TR81A

TR81A; Ultra Electric Ltd.; (ID = 728229) Radio
 
TR81A; Ultra Electric Ltd.; (ID = 728231) Radio
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TR81A; Ultra Electric Ltd.; (ID = 728229) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Ultra Electric Ltd.; London
alternative name
 
Ultra Radio and Television
Year: 1962 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 8: AF114 AF115 AF116 AF116 AF116 OC71 OC81D OC81 OC81
Main principle Superheterodyne (common); ZF/IF 471 kHz; 3 AF stage(s)
Tuned circuits 7 AM circuit(s)     10 FM circuit(s)
Wave bands Broadcast, Long Wave and FM or UHF.
Details
Power type and voltage Dry Batteries / 6 x 1.5 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
Power out
from Radiomuseum.org Model: TR81A - Ultra Electric Ltd.; London
Shape Portable set > 8 inch (also usable without mains)
Notes Portable radio with sockets for external aerial, record/tape input, & external speaker.
Source of data -- Schematic
Literature/Schematics (1) Radio And Television Servicing books (R&TVS)

Model page created by Keith Staines. See "Data change" for further contributors.



All listed radios etc. from Ultra Electric Ltd.; London
Here you find 218 models, 129 with images and 149 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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