the Radio Attic Archives
High Frequency Laboratories Nine-In-Line (1926)
High Frequency Laboratories Nine-In-Line
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.
Tube Line Up:
01A...1st. Det.
01A...Oscillator
01A...1st. I.F. Amplifier
01A...2nd. I.F. Amplifier
01A...3rd. I.F. Amplifier
01A...4th. I.F. Amplifier
01A...2nd. Detector
01A...1st Audio
01A or 112A...Audio Output
A1  |  A2  |  A3  |  A4  |  A5  |  A6  |  A7  |  A8  |  B1  |  B2  |  C1  |  C2  |  C3  |  C4  |  C5  |  D1  |  D2  |  D3  
E1  |  E2  |  E3  |  E4  |  E5  |  F1  |  F2  |  F3  |  G1  |  G2  |  G3  |  G4  |  G5  |  G6  |  H  |  IJ  |  K  |  L  
M1  |  M2  |  M3  |  M4  |  M5  |  M6  |  NO  |  P1  |  P2  |  P3  |  P4  |  P5  |  P6  |  R1  |  R2  |  R3  |  R4  |  R5  
R6  |  S1  |  S2  |  S3  |  S4  |  S5  |  S6  |  S7  |  S8  |  S9  |  T1  |  T2  |  UV  |  W1  |  W2  |  W3  |  XZ  |  Z1  
Z2  |  Z3  |  Z4  |  Z5  |  Z6  |  Z7  
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