Name: 955 Use: Glass tube type developed for use with VHF circuitry for RF amplification and detections service. Was used extensively in superregenerative receivers and early strip-line transmitters. Notes: Requires an 5-pin "acorn" socket. |
955 Medium-Mu "Acorn" Triode Data Source= GE-73 Heater or Filament Voltage= 6.3 volts Heater or Filament Current= 0.15 amperes EIA Base= 5BC Substitutes= None |
Capacitances and Design Maximum Values: C/in. . . . . . . . . . . . 1.0 pf C/out . . . . . . . . . . . 0.4 pf C/gp. . . . . . . . . . . . 1.3 pf Plate Dissipation . . . . . 1.6 watts Maximum Plate Voltage . . . 180 volts Maximum Plate Current . . . 8 ma Maximum Grid Current. . . . 2.0 ma Maximum Frequency . . . . . 250 MHz |
Typical Operation as a Receiving Tube Description Ep Eg Es Is Ip Rp TC AF Zl PO --------------------------------------------------------------------- Class A Amplifier 250 -7 - - 6.3 11.4K 2200 25 - - Class A Amplifier 180 -5.0 - - 4.5 12.5K 2000 25 20K 0.135 Class A Amplifier 90 -2.5 - - 2.5 14.7K 1700 25 - - As a Transmitting Tube Class of Service Ep Eg EgMax Ip IpMax Ig Drive Zl PO ------------------------------------------------------------------ Class C Osc/Amp 180 -35 - 7 - 1.5 - - 0.5 |