TUBE: 6AH4GT
FICHIER SOURCE: sheets/137/6/6AH4GT.pdf
FABRICANT: Sylvania (Sylvania Electric Products Inc., Emporium, PA)
ANNÉE: November 1953
TYPE: Triode (high perveance, chauffage indirect) — TV vertical deflection amplifier

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SYLVANIA engineering data service — 6AH4GT
QUICK REFERENCE DATA: High perveance triode for use as a vertical deflection amplifier in television receivers.

MECHANICAL DATA
Bulb ............ T-9
Base ............ Short Intermediate Shell Octal 6-Pin
Basing .......... 8EL
Cathode ......... Unipotential
Mounting Position ... Any

ELECTRICAL DATA
HEATER CHARACTERISTICS
  Heater Voltage .... 6.3 Volts
  Heater Current .... 0.75 Ampere
DIRECT INTERELECTRODE CAPACITANCES:
                       Shielded(1) / Unshielded
  Grid to Plate ..... 4.2 / 4.4 µµf
  Input ............. 7.5 / 7.0 µµf
  Output ............ 3.2 / 1.7 µµf

RATINGS (Design Center Values — Except as Noted) — Vertical Deflection Amplifier(2):
  Plate Voltage ................... 500 Volts Max
  Peak Positive Plate Voltage ..... 2000 Volts Abs. Max
  Plate Dissipation(3) ............ 7.5 Watts Max
  Positive Grid Voltage ........... 0 Volts Max
  Peak Negative Pulse Grid Voltage . 200 Volts Max
  Average Cathode Current ......... 60 Ma Max
  Peak Cathode Pulse Current ...... 180 Ma Max
  Heater Positive w.r.t. Cathode: DC 100 Volts Max; Peak of DC plus Pulse 200 Volts Max
  Heater Negative w.r.t. Cathode: Peak of DC plus Pulse 200 Volts Max
  Grid Circuit Resistance ......... 2.2 Megohms Max

CHARACTERISTICS — Conditions (two columns):
  Plate Voltage ......... 250 / 250 Volts
  Grid Voltage .......... -33 / -23 Volts
  Plate Current ......... 5.0 / 30 Ma
  Transconductance ...... 4500 µmhos
  Amplification Factor .. 8
  Plate Resistance ...... 1780 Ohms
  Grid Voltage for Ib=0.5 Ma (approx.) .... -40 Volts

PINOUT (Bottom View, 8EL): pin1=g; pin2=h; pin3=nc; pin5=p; pin7=h; pin8=k
[Diagram labels: P (pin5), NC (pin3), H (pin2), H (pin7), G (pin1), K (pin8)]
Sylvania Electric Products Inc., Technical Publications Section, Emporium, Pennsylvania. November 1953.

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[courbes seules — AVERAGE PLATE CHARACTERISTICS, EACH SECTION, Ef=6.3V, Current mA vs Plate Volts, Ec1=0 to -65]

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[courbes seules — AVERAGE TRANSFER CHARACTERISTICS, Ef=6.3V Eb=250V, courbes mu / gm / Ib vs Control Grid Volts; mu ~6-9, gm jusqu'à ~9000 µmhos]