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TR-4

TR-4 ; Regency brand of I.D (ID = 2486713) Radio
 
TR-4 ; Regency brand of I.D (ID = 2486714) Radio
 
TR-4 ; Regency brand of I.D (ID = 2486715) Radio
 
TR-4 ; Regency brand of I.D (ID = 2486716) Radio
 
TR-4 ; Regency brand of I.D (ID = 2486717) Radio
 
TR-4 ; Regency brand of I.D (ID = 2486718) Radio
 
TR-4 ; Regency brand of I.D (ID = 602141) Radio
TR-4 ; Regency brand of I.D (ID = 2223610) Radio TR-4 ; Regency brand of I.D (ID = 2223613) Radio
TR-4 ; Regency brand of I.D (ID = 2223612) Radio TR-4 ; Regency brand of I.D (ID = 2223614) Radio
TR-4 ; Regency brand of I.D (ID = 2223611) Radio TR-4 ; Regency brand of I.D (ID = 2231013) Radio
TR-4 ; Regency brand of I.D (ID = 2231015) Radio TR-4 ; Regency brand of I.D (ID = 609613) Radio
TR-4 ; Regency brand of I.D (ID = 716384) Radio TR-4 ; Regency brand of I.D (ID = 609615) Radio
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TR-4 ; Regency brand of I.D (ID = 2223610) Radio
Regency brand of I.D: TR-4 [Radio] ID = 2223610 909x1200
Select picture or schematic to display from thumbnails on the right and click for download.
For model TR-4, Regency (brand of I.D.E.A.)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Regency (brand of I.D.E.A.)
alternative name
 
Idea (I.D.E.A.)
Year: 1957 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 4: 2N229 2N229 2N229 2N213
Main principle Superheterodyne (common); ZF/IF 455 kHz
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries / 9 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.75 inch = 7 cm
Power out
from Radiomuseum.org Model: TR-4 - Regency brand of I.D.E.A.
Material Plastics (no bakelite or catalin)
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Dimensions (WHD) 3 x 5 x 1.25 inch / 76 x 127 x 32 mm
Notes

Regency model TR-4 is a battery operated portable AM transistorized receiver. In October 1954, Regency introduced the TR-1, the world's first commercial pocket transistor radio.  The TR-4, and also the TR-1G, were revival models of the original TR-1.  It was available in ebony, red, or ivory. 

Mentioned in The Collector's Guide To Antique Radios 2. Edition (page 160)
Literature/Schematics (1) Photofact Folder, Howard W. SAMS (Set 381 Folder 11 dated 12-57)
Literature/Schematics (2) Collector's Guide To TrR1 Bunis trans.94 (1996, page 230)

Model page created by Ernst Erb. See "Data change" for further contributors.



All listed radios etc. from Regency (brand of I.D.E.A.)
Here you find 64 models, 54 with images and 29 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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