LabGuy's World: 1972 Sony TT-100 VTR Tuner / Timer / RF Unit New Addition 03.01.26 1972 Sony TT-100 Television Receiver / VTR Timer / RF Unit .         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 for playing back video on a television set. This unit would have been the compliment to the first generation Umatic VCRs. Some of the Umatic VCRs had built in receivers. for the VCRs without receivers, this was the perfect add on. It allows for the all too familiar time shifting of programs by way of its built-in mechanical digital clock / timer. When the desired time was reached, AC power was engaged to the recorder. This means that the VCR had to be the mechanical kind, so the user could put the mechanism into record with the power off. Clunky, but usable! What a wonderful artifact! [HOME]......[VIDEO RECORDERS MUSEUM] Last updated: January 09, 2005