|
 1636 Beam deflection mixer |  2H21 Phasitron |  5593 Phasitron |  5734 Transducer triode |  6170 Commutator tube |
 6324 Commutator tube |  931 Electrometer tetrode |  CV451 Electrometer triode |  CV495 Electrometer triode |  CV2348 Electrometer triode |
 DDR100 Accelerometer double diode |  E4T Beam deflection tube |  E80T Beam deflection tube |  ET1 Electrometer triode | ME1401 Electrometer |
 ME1403 Electrometer |  ORP90 LDR |  VC50-32 Vacuum capacitor |  Standard Leak Standard leak |