Name: 12BH7A Use: Miniature tube type used as combined vertical-deflection amplifier and oscillator, and as horizontal-deflection oscillator in tv receivers and in phase- inverter and multivibrator circuits. Notes: Requires a miniature 9-contact socket. |
12BH7A Characteristics Data Source. . . . . . . . . RC-29 Heater or Filament Voltage . 6.3/12.6 volts Heater or Filament Current . 0.6/0.3 amperes EIA Base . . . . . . . . . . 9A Substitutes . . . . 12DW7 12AU7 12AZ7 |
Capacitances and Design Maximum Values: Section . . . . . . . . . . Triode 1 C/in. . . . . . . . . . . . 3.2 pf C/out . . . . . . . . . . . 0.4 pf C/gp. . . . . . . . . . . . 2.6 pf Plate Dissipation . . . . . 3.5 watts Maximum Plate Voltage . . . 300 volts Maximum Plate Current . . . 20 ma Section . . . . . . . . . . Triode 2 C/in. . . . . . . . . . . . 3.2 pf C/out . . . . . . . . . . . 0.5 pf C/gp. . . . . . . . . . . . 2.6 pf Plate Dissipation . . . . . 3.5 watts Maximum Plate Voltage . . . 300 volts Maximum Plate Current . . . 20 ma |
Typical Operation as a Receiving Tube Description Ep Eg EgMax Es Is IsMax Ip IpMax Rp TC AF Zl PO ========================================================================= Class A Amp 250 -10.5 - - - - 11.5 - 5.3K 3100 16.5 - - (each section) |