General Electric
BA-2-A. Program Amplifier. 1948. 6.7MB. Scanned and contributed by Tim Hughes.- BT-1-B 250 Watt FM Broadcast Transmitter - Phasitron based transmitter of 1949. Scanned by Dave Hershberger.
Phasitron - Dave Hershberger's page on the GE Phasitron. See also patent 2,461,250 by Francis M. Bailey on the Electric Discharge Device and System, February 8, 1949, assigned to General Electric.- GE Quadraphonic - Jim Tonne has contributed photos and history of the development of quadraphonic transmission equipment for General Electric by Moseley Associates.
GE TRANSMITTER EQUIPMENT - During the late 1940's and early 1950's much of television engineering was in what may be termed the 'experimental' stage. Most VHF transmitters were limited to about 5 KW peak visual power and about half that power for the aural. The General Electric Company built one of the first really 'large' high band amplifers that would take the 5 KW of an early RCA, Federal or GE TT-6 and bring it up to a full 50 KW peak visual and 26.5 KW FM for the aural. This amplifier was very popular and this basic design was in use until GE retired from the transmitter field in the late 1960's. Only the tubes and a number of parts were updated. The TT-35 series (of which this amplifier with a TT-6 driver would make) stayed in the field for many years. Notable stations used the TT-35 package. WHAS-TV and KSL-TV are but two of those notable stations. Manual contributed by Alan Kline and scanned and notes by Stanley Adams.
- GE 50KW High Channel Television Amplifier, Model 4TF5A1,2 - start through page 65 (9.4M)
- GE 50KW High Channel Television Amplifier, Model 4TF5A1,2 - page 66 to end (10M)
Back to HomePage
Contribute Documents?