LabGuy's World: 1968 Sony TUM-100 TV Tuner / RF Modulator New Addition 01.11.12 1968 Sony TUM-100 TV Tuner / RF Modulator .         Vintage: late 1960s? This is a stand alone television receiver capable of picking up (U.S.) VHF & UHF channels. It is also an RF modulator that takes in composite video and one channel of audio and puts them out on an unused VHF channel. Usually channel 3 or 4. We would take something like this for granted today, since these functions are standard on even the cheapest home VCR! Not so back then! From the seriousness of the audio connectors, this unit was probably intended to be used with the EV series of one inch VTRs from Sony.         Needed: Service manuals for this guy.  [HOME]......[VIDEO RECORDERS MUSEUM] Last updated: January 09, 2005