RCA Transmitter (1936) |
RCA T1 1kw transmitter (1938) |
The M-25 consisted of two units; the transmitter (above) and the power supply (below). The 25 watt transmitter was crystal controlled and operated on frequencies between 288 and 346 mHz. |
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Rear view. The push-pull 2074G power amplifiers are at the top center. Below is the video modulator, 2 - 807s in parallel. |
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The power supply used 4 - 866 tubes in the high voltage circuits. The unit was powered from a generator supplying 120 vac at 600 watts.
RCA M-25 Mobile Transmitter (1939) |
RCA 4 kw Transmitter (1940) |
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RCA high power transmitter (1941) |
177 mHz transmitter used to relay television signals from
Radio City studios to the transmitter on the Empire State
Building (1939) |
Coaxial cable used by RCA for video
transmission |
GE Transmitter (1939)
1944 Brochure (Courtesy of Bobby Ellerbee) |
Another GE transmiter
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French amplifier for video signals -1939 |
Milan, Italy Transmitter, 1939 |
Berlin 16 Kw transmitter made by Telefunken (1936)
Transmitter control panel
Transmitter Tower |
Portable video amplifier - Fernseh, 1939
Mechanical sync generator - Fernseh, 1939 |
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