Chronotron tube. The tube contains two heaters and two electrically isolated thermistor elements. Connected in the circuit of a low frequency oscillator, it controls the period by thermal feedback.
TT-9 has 300 ohms heaters and 125 ohms secondaries resistances, 10 sec time constant.
Bibliografia
- - Manufacturers Literature
TT-9: Manufacturer's Literature
Emilio Ciardiello
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TT-9: Manufacturer's Literature
Emilio Ciardiello
Just Qvigstad
TT-9: Manufacturer's Literature
Emilio Ciardiello
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