TUBE: 6AQ5 (et 5AQ5)
FICHIER SOURCE: sheets/093/6/6AQ5.pdf
FABRICANT: General Electric (GE Electronic Tubes)
ANNÉE: 1954-1955 (ET-T885, 6-55 / 8-54)
LANGUE: en

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[Logo GE Electronic Tubes] 6AQ5—5AQ5 — BEAM PENTODE
DESCRIPTION AND RATING
The 6AQ5 is a miniature beam-power pentode designed for use in the audio-frequency power output stage of television and radio receivers. It may also be used as a triode-connected vertical deflection amplifier. Within its maximum ratings, the performance of the 6AQ5 is equivalent to that of the 6V6-GT.
Except for heater ratings, the 5AQ5 is identical to the 6AQ5 (5AQ5: controlled heater warm-up, 600 mA series).

GENERAL — ELECTRICAL — Cathode: Coated Unipotential
  Heater Voltage (AC or DC):  5AQ5=4.7 V ; 6AQ5=6.3 V
  Heater Current: 5AQ5=0.6 A ; 6AQ5=0.45 A
  Heater Warm-up Time: 5AQ5=11 s
  Direct Interelectrode Capacitances (approx., no external shield):
    Grid-No.1 to Plate  0.4 µµf
    Input  8.0 µµf
    Output  8.5 µµf
MECHANICAL: Mounting Any; Envelope T-5½ Glass; Base E7-1 Miniature Button 7-Pin.

BASING DIAGRAM: RETMA 7BZ
TERMINAL CONNECTIONS:
  Pin 1 — Grid-Number 1
  Pin 2 — Cathode and Beam Plates
  Pin 3 — Heater
  Pin 4 — Heater
  Pin 5 — Plate
  Pin 6 — Grid-Number 2 (Screen)
  Pin 7 — Grid-Number 1

MAXIMUM RATINGS (Design-Center; Class A1 Amplifier | Vertical-Deflection Amplifier Triode Connection):
  DC Plate Voltage  250 | 250 V
  Peak Positive Pulse Plate Voltage  | 1100π V
  Screen Voltage  250 | ... V
  Peak Negative Grid-No.1 Voltage  | 250 V
  Plate Dissipation  12 | 9.0 W
  Screen Dissipation  2.0 | ... W
  DC Cathode Current  | 35 mA
  Peak Cathode Current  | 105 mA
  Heater-Cathode Voltage: Heater+ DC 100|100; Total DC+Peak 200|200; Heater- Total DC+Peak 200|200 V
  Grid-No.1 Circuit Resistance: Fixed Bias 0.1 MΩ ; Cathode Bias 0.5|2.2 MΩ
  Bulb Temperature 250 C
GENERAL ELECTRIC. Supersede ET-T271D dated 6-53.

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CLASS A1 AMPLIFIER (180V | 250V):
  Plate Voltage  180 | 250 V ; Screen Voltage  180 | 250 V ; Grid-No.1 Voltage  -8.5 | -12.5 V ; Peak AF Grid-No.1  8.5 | 12.5 V
  Plate Resistance  58000 | 52000 Ω ; Transconductance  3700 | 4100 µmho
  Zero-Signal Plate Current  29 | 45 mA ; Max-Signal Plate Current  30 | 47 mA
  Zero-Signal Screen Current  3.0 | 4.5 mA ; Max-Signal Screen Current  4.0 | 7.0 mA
  Load Resistance  5500 | 5000 Ω ; THD  8 | 8 % ; Max-Signal Power Output  2.0 | 4.5 W
PUSH-PULL CLASS AB1 (two tubes):
  Plate Voltage 250 V ; Screen Voltage 250 V ; Grid-No.1 Voltage -15 V ; Peak AF Grid-to-Grid 30 V
  Zero-Signal Plate Current 70 mA ; Max-Signal Plate Current 79 mA ; Zero-Signal Screen Current 5.0 mA ; Max-Signal Screen Current 13 mA
  Effective Load Plate-to-Plate 10000 Ω ; THD 5 % ; Max-Signal Power Output 10 W
AVERAGE CHARACTERISTICS, TRIODE CONNECTION (screen tied to plate):
  Plate Voltage 250 V ; Grid-No.1 Voltage -12.5 V ; Amplification Factor 9.5 ; Plate Resistance 1970 Ω ; Transconductance 4800 µmho ; Plate Current 49.5 mA ; Grid-No.1 V for Ib=0.5mA approx. -37 V

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[courbes seules] AVERAGE PLATE CHARACTERISTICS — Ib vs Plate Voltage, Ec2=250V, Ec1 +15 à -20 ; et famille Ec2 variable. Page 3.

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[courbes seules] AVERAGE PLATE CHARACTERISTICS (pentode Ec2=100/150/200/250; et TRIODE CONNECTION screen tied to plate). Page 4.

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[courbes seules] AVERAGE TRANSFER CHARACTERISTICS — screen & plate current vs Grid-No.1 voltage, Eb=250V. Page 5.

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[courbes seules] OPERATION CHARACTERISTICS — power output / distortion / plate & screen current vs Load Resistance (Eb=Ec2=250V, Ec1=-12.5V, Esig=8.8 Vrms). GENERAL ELECTRIC, Schenectady. Page 6.