the Radio Attic Archives
American Bosch 670T (1937)
American Bosch 670T
Photos donated by Michael Feldt.
Visit Michael's web site at http://www.indianaradios.com/.

To see all the photos Michael has contributed to the Archives, click here.
The 670T, sister radio to the Westinghouse WR-214, was the largest table model radio, and the only tombstone radio, American Bosch offered in 1937. I purchased this radio through an ad in the Antique Radio Classified magazine in the early 1990s.

Tube Line Up:
6K7G...R.F. Amplifier
6A8G...1st. Detector / Oscillator
6K7G...I.F. Amplifier
6H6G...2nd. Detector / AVC
6C5G...Audio Driver
6F5G...Audio Phase Splitter
2 x 6F6G...Push - Pull Audio Output
5Y3...Rectifier

Frequency Ranges:
LW Band (Green)...150 kHz - 380 kHz
BC Band (Cream)...540 kHz - 1800 kHz
P Band (Blue)...1.8 MHz - 6 MHz
SW Band (Red)...6 MHz - 18 MHz

A1  A2  A3  A4  A5  A6  A7  B  C1  C2  C3  C4  D1  D2  D3  E1  E2  E3  
E4  E5  F1  F2  F3  G1  G2  G3  G4  G5  H  IJ  K  L  M1  M2  M3  M4  
M5  NO  P1  P2  P3  P4  P5  R1  R2  R3  R4  R5  R6  S1  S2  S3  S4  S5  
S6  S7  S8  T1  T2  UV  W1  W2  W3  XZ  Z1  Z2  Z3  Z4  Z5  Z6  Z7  
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The "Archives" are maintained just for fun by Steve Adams at the Radio Attic.
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When cabinet material or color differences are apparent or suspected  in donated photos, I have included additional photos of certain model numbers.  Due to time constraints, I must rely entirely on the accuracy of information supplied by contributors with their photographs.  As such, no guarantee is made that the model numbers presented here are correct.

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