This first Blonder-Tongue product was a low-noise, broadband, fixed-tuned 12 channel VHF TV booster amplifier that used four tubes. It employs a patented RF coupling circuit invented by Ben H. Tongue and was used to improve fringe area TV reception. This unit and its successors were produced from 1950 through about 1960: Model HA-1L |
Here is the first B-T UHF tube type converter housed in a plastic cabinet. It was used to enable TV sets of its time to receive the then new UHF TV stations broadcasting on channels 14-83. Various tubed and solid state B-T UHF converters for home use were in continuous production from 1952 through about 1980: Model BTU-2 |
Here is the 'Audio Baton'. It was the first 'no-inductor' graphic audio equalizer for hi-fi and broadcast use. The unit uses six vacuum tubes and an audio band-pass filter circuit invented and patented by Ben H. Tongue. Nine one-octave bands are individually controlled. Manufactured from about 1959 through 1961: Model B-9 |