I-208

for SCR-508 sets Dual range FM generator, 1.9 to 4.5 and 19 to 45 MHz. Modulation: five steps from 150 to 5000 Hz, plus external; up to 50 kHz deviation. 500 kHz Xtal internal calibrator with self contained beat note monitor speaker. Modular design with four major subassemblies: power supply, AF modulator, Xtal calibrator, RF generator. Projection tuning dial with 1300 divisions, 2 kHz resolution over the high frequency band

References

• TM 11-317 Signal Generator I-208. War Dept. Aug. 1943. 1 v. (various pagings) U408.3.A13

TM 11-317 Aug. 1943

• TM 11-4012 repair instructions