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E.H. Scott Worlds Record Shield Grid 9 (1928)
E.H. Scott Worlds Record Shield Grid 9
Photos donated by Michael Feldt.
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There were two versions of this superheterodyne radio made, the 9 which had a 8 tube chassis and a three tube power supply/amplifier and the 9B which had 9 tubes on the chassis and no power supply/amplifier. This was Scott's first radio to use the new screen grid tubes (UX-222) that had just come out earlier that year. I acquired this set in 1990 from a Washington State audio enthusiast in a trade for a Counterpoint D90 amplifier.

Tube Line Up:
01A...R.F. Amplifier
01A...1st. Detector / Mixer
22...1st. I.F. Amplifier
22...2nd. I.F. Amplifier
22...3rd. I.F. Amplifier
01A...2nd. Detector
12A...Audio Driver
50...Audio Output (Located on separate power supply / amplifier)
81 x 2...Rect. (Located on separate power supply / amplifier)

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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