Medium-Mu Triode
Raytheon and RCA tubes available.
JRP-957, VT237
Raytheon Contract NXSR-45462 ~ 1944
Raytheon Contract NXS-5979 ~ 1943
RCA Contract NXS 7011 ~ 1943
The Raytheon and RCA 957 Vacuum tubes are acorn all glass
tubes. They are used in Signal Corps BC-1066-A receivers
among other radios.
Electrical Data:
Voltage ................................ 1.25 DC V
Heater Current ......................... 0.05 A
Preferred Substitutes ............. VT237, JRP-957,
957