TUBE: 5AQ5
FICHIER SOURCE: sheets/127/5/5AQ5.pdf
FABRICANT: Tung-Sol (Tung-Sol Electric Inc., Bloomfield NJ)
ANNÉE: 1959 (March 1, 1959, Plate #5433; curves Oct 1 1954 Plate #4022/#4023)
TYPE: BEAM PENTODE (beam power amplifier, miniature) — = 6AQ5 with 4.7V heater

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5AQ5 — TUNG-SOL — BEAM PENTODE, MINIATURE TYPE
COATED UNIPOTENTIAL CATHODE
HEATER: 4.7 VOLTS, 0.6 ±6% AMP, AC or DC
ANY MOUNTING POSITION
GLASS BULB T-5 1/2; bottom view miniature button 7 pin base 7BZ.
BOTTOM VIEW pins: H, P, H, G2, K, G1, G1 (g3/beam plates internal)
"The 5AQ5 is a beam power amplifier using the 7 pin miniature construction. It is
designed for service in 600mA series heater operated TV receivers... With the exception
of heater ratings, its characteristics are identical to the 6AQ5."

DIRECT INTERELECTRODE CAPACITANCES (approx, no external shield):
  GRID #1 TO PLATE .... 0.4 µµf
  INPUT ............... 8.0 µµf
  OUTPUT .............. 8.5 µµf

RATINGS (Design Maximum System) — CLASS A1 AMPLIFIER:
  HEATER VOLTAGE ............................ 0.6±6% [=4.7V] VOLTS
  MAX PEAK HEATER-CATHODE VOLTAGE:
    Heater neg wrt cathode, total DC+peak ... 200 VOLTS
    Heater pos wrt cathode, DC .............. 100 VOLTS
    total DC+peak ........................... 200 VOLTS
  MAXIMUM PLATE VOLTAGE ..................... 275 VOLTS
  MAXIMUM GRID #2 VOLTAGE ................... 275 VOLTS
  MAXIMUM PLATE DISSIPATION ................. 12 WATTS
  MAXIMUM GRID #2 INPUT ..................... 2 WATTS
  MAXIMUM BULB TEMPERATURE (hottest point) .. 250 °C
  MAX GRID #1 CIRCUIT RESISTANCE:
    Fixed bias .............................. 0.1 MEGOHMS
    Cathode bias ............................ 0.5 MEGOHMS
  HEATER WARM-UP TIME (approx) .............. 11.0 SECONDS

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RATINGS - CONT'D — VERTICAL DEFLECTION AMPLIFIER (grid #2 connected to plate):
  HEATER VOLTAGE ........................... 0.6±6% [4.7V] VOLTS
  MAX DC PLATE VOLTAGE ..................... 275 VOLTS
  MAX PEAK POSITIVE PLATE VOLTAGE (abs max)  1100 VOLTS
  MAX PLATE DISSIPATION .................... 10 WATTS
  MAX PEAK NEGATIVE GRID #1 VOLTAGE ........ 275 VOLTS
  MAX AVERAGE CATHODE CURRENT .............. 40 MA
  MAX PEAK CATHODE CURRENT ................. 115 MA
  MAX BULB TEMPERATURE ..................... 250 °C

TYPICAL OPERATING CONDITIONS — CLASS A1 AMPLIFIER (single tube):
                                 (col1)    (col2)
  HEATER VOLTAGE              0.6±6%    0.6±6%   VOLTS
  HEATER CURRENT             0.45      0.45     AMP
  PLATE VOLTAGE              180       250      VOLTS
  GRID #2 VOLTAGE            180       250      VOLTS
  GRID #1 VOLTAGE            -8.5      -12.5    VOLTS
  PEAK AF GRID #1 VOLTAGE    8.5       12.5     VOLTS
  ZERO-SIGNAL PLATE CURRENT  29        45       MA
  MAX-SIGNAL PLATE CURRENT   30        47       MA
  ZERO-SIGNAL GRID #2 CURRENT 3        4.5      MA
  MAX-SIGNAL GRID #2 CURRENT  4        7        MA
  PLATE RESISTANCE (approx)  58000     52000    OHMS
  TRANSCONDUCTANCE           3700      4100     µMHOS
  LOAD RESISTANCE            5500      5000     OHMS
  TOTAL HARMONIC DISTORTION  8         8        PERCENT
  MAX SIGNAL POWER OUTPUT    2.0       4.5      WATTS

AVERAGE CHARACTERISTICS — TRIODE CONNECTED:
  PLATE VOLTAGE ............ 250 VOLTS
  GRID VOLTAGE ............. -12.5 VOLTS
  PLATE CURRENT ........... 49.5 MA
  TRANSCONDUCTANCE ......... 4800 µMHOS
  AMPLIFICATION FACTOR ..... 9.5
  PLATE RESISTANCE (approx)  1970 OHMS
  GRID VOLTAGE for Ib=0.5mA  -37 VOLTS

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[courbes seules — pas de données tabulaires]
(Ib/Ic2/Po/Dist vs load resistance, pentode conn Eb=Ec2=250V, Ec1=-12.6V, Esig=8.8V.
Triode connection plate family Ec=+20..-50.)

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[courbes seules — pas de données tabulaires]
(Pentode plate characteristics Ec2=250V, Ec1=+15..-30; grid #2 current curves.)