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TT-22

Informazioni - Aiuto 
ID = 32785
       
Stato:
USA (Stati Uniti d'America)
Produttore: Bendix, Red Bank Division, Eatontown (NJ)
Tipo:  ALTRO, NON VALVOLA (in generale) 
Identico a TT-22
Zoccolo Miniatur-7-Pin-Base B7G, USA 1940
Descrizione 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-21 has 1000 ohms heaters and 500 ohms secondaries resistances, 22 sec time constant. 
Bibliografia - - Manufacturers Literature   
chrono_app1_9.png
TT-22: Manufacturer's Literature
Emilio Ciardiello
chrono_pin_8.png TT-22: Manufacturer's Literature
Emilio Ciardiello

Just Qvigstad 		chrono_1_8.png
TT-22: Manufacturer's Literature
Emilio Ciardiello
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