TUBE: 6BX7GT
SOURCE FILE: sheets/127/6/6BX7GT.pdf
MANUFACTURER: Tung-Sol (Tung-Sol Electric Inc., Electron Tube Division, Bloomfield, New Jersey)
YEAR: 1956 (JANUARY 1, 1956)
PAGES: 2

===== PAGE 1 =====
TUNG-SOL 6BX7GT — DOUBLE TRIODE
COATED UNIPOTENTIAL CATHODES. HEATER 6.3 VOLTS 1.5 AMP. AC OR DC. ANY MOUNTING POSITION.
GLASS BULB T-9. BOTTOM VIEW SHORT INTERMEDIATE SHELL 8 PIN OCTAL 8BD.
Basing labels: G (pin4), P (pin5), K (pin6), H (pin7), H (pin8), P (pin2), K (pin3), G (pin1).
The 6BX7GT is a high-perveance double triode designed for use as a vertical deflection amplifier and oscillator in television receivers.
DIRECT INTERELECTRODE CAPACITANCES (approx.):  WITHOUT SHIELD / WITH SHIELD(A)
  SECTION I:
    Grid to Plate (G to P) ........ 4.2 / 4.2 µµf
    Input: G to (H+K) ........ 4.4 / 5 µµf
    Output: P to (H+K) ........ 1.1 / 3.4 µµf
  SECTION II:
    Grid to Plate (G to P) ........ 4 / 4 µµf
    Input: G to (H+K) ........ 4.8 / 5 µµf
    Output: P to (H+K) ........ 1.2 / 3.2 µµf
  Grid to Grid (G to G) ........ 0.11 / 0.1 µµf
  Plate to Plate (P to P) ........ 1.5 / 1.2 µµf
  (A): external shield #308 connected to cathode of section under test.

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RATINGS (Interpreted according to Design Center system) — VERTICAL DEFLECTION AMPLIFIER AND OSCILLATOR:
                                          OSCILLATOR / AMPLIFIER
  Heater Voltage ........ 6.3 Volts
  Max Heater-Cathode Voltage:
    Heater negative wrt cathode: DC ........ 200 Volts; Total DC & peak ........ 200 Volts
    Heater positive wrt cathode: DC ........ 100 Volts; Total DC & peak ........ 200 Volts
  Maximum DC Plate Voltage ........ 500 / 500 Volts
  Maximum Peak Positive Pulse Plate Voltage (absolute max) ........ - / 2000 Volts
  Maximum Peak Negative Pulse Grid Voltage ........ 400 / 250 Volts
  Maximum DC Positive Grid Voltage ........ 0 / 0 VDC
  Maximum Plate Dissipation ........ 10 / 10 Watts
  Maximum Total Plate Dissipation ........ 12 Watts
  Maximum Average Cathode Current ........ 60 / 60 mA
  Maximum Peak Cathode Current ........ 180 / 180 mA
  Maximum Grid Circuit Resistance (self bias) ........ 2.2 / 2.2 Megohms
TYPICAL OPERATING CONDITIONS AND CHARACTERISTICS (2 columns: 100 V / 250 V):
  Heater Voltage ........ 6.3 Volts; Heater Current ........ 1.5 Amp
  Plate Voltage ........ 100 / 250 Volts
  Grid #1 Voltage ........ 0 / 0 Volts
  Cathode Resistor ........ 0 / 390 Ohms
  Plate Current ........ 80 / 42 mA
  Transconductance ........ - / 7600 µmhos
  Amplification Factor ........ - / 10
  Plate Resistance (approx.) ........ - / 1300 Ohms
  Grid Voltage for Ib=50 µA ........ - / -40 Volts
Footnotes: B=525-line 30-frame TV system; C=section #1 (pins 4,5,6) recommended as oscillator; D=grid-leak bias requires bias resistor without excitation.