TUBE: 6W6GT
FICHIER SOURCE: sheets/201/6/6W6GT.pdf
FABRICANT: Hytron Corporation (p1) + JETEC (Joint Electron Tube Engineering Council, p2-4)
ANNÉE: 1939 (Hytron RMA Release #191, June 8 1939) + 1956 (JETEC Release 191B, Jan 16 1956)
LANGUE: en
PAGES: 4 (toutes données; p1 Hytron, p2-4 JETEC)
NOTE: Le PDF fusionne deux sources: la spec Hytron 1939 (heater 6.5V/1.25A!) et la norme JETEC 191B 1956 (heater 6.3V/1.2A).

===== PAGE 1 (Hytron 1939) =====
HYTRON CORPORATION — RMA Release #191 (June 8, 1939) — TENTATIVE SPECIFICATIONS — BANTAM TYPE 6W6GT
The Hytron Bantam 6W6GT is a cathode type high-mu beam-power amplifier for output stage of
automobile receivers having low voltage power supplies. Designed similar to beam-power type 6L6G.
PHYSICAL CHARACTERISTICS: BULB T-9D

RATINGS AND CHARACTERISTICS:
Heater:
  Voltage   6.5 volts AC or DC   [NB: 6.5V, valeur Hytron 1939, atypique]
  Current   1.25 amps
AMPLIFIER OPERATION — SINGLE TUBE — CLASS A:
  Plate Voltage              185    volts max
  Screen Voltage             185    volts max
  Grid Voltage               -9.5   volts
  Plate Current (Zero Signal) 58.0  ma
  Plate Current (Max Signal) 61.0   ma
  Screen Current (Zero Signal) 2.8  ma
  Screen Current (Max Signal) 12.0  ma
  Signal Input Volts         6.7    volts RMS
  Mutual Conductance         9000   µmhos
  Amplification Factor       215
  Load Resistance            2000   ohms
  Harmonic Distortion: Second 2.5%; Third 9%; Total 11%
  Maximum Power Output       3.3    watts
BASING CONNECTIONS:
  Pin 1 = Shell
  Pin 2 = Heater
  Pin 3 = Plate
  Pin 4 = Screen
  Pin 5 = Grid
  Pin 6 = Open
  Pin 7 = Heater
  Pin 8 = Cathode

===== PAGE 2 (JETEC 191B, 1956) =====
JETEC TYPE 6W6GT — BEAM PENTODE — Release 191B (JTC-5, Jan 16, 1956)
MECHANICAL DATA:
  Coated unipotential cathode
  Outline drawing 9-11 or 9-41; Bulb T-9
  Base B6-81 or B7-7 intermediate shell octal, or B6-84 or B7-59 short intermediate shell octal
  Max diameter 1-9/32"; Max overall length 3-5/16"; Max seated height 2-3/4"
  Basing 7AC:
    Pin 1 = No connection (omitted on B6-81, B6-84)
    Pin 2 = Heater
    Pin 3 = Plate
    Pin 4 = Grid #2
    Pin 5 = Grid #1
    Pin 7 = Heater
    Pin 8 = Cathode, grid #3
ELECTRICAL DATA — Direct Interelectrode Capacitances (Approx):
  Grid to plate (g1 to p)   0.8   µµf
  Input  g1 to (h+k+g2+g3)  15.0  µµf
  Output p to (h+k+g2+g3)   9.0   µµf
Heater Characteristics:
  Heater voltage   6.3   volts
  Heater current   1.2   amperes
  Max heater-cathode voltage: neg Total DC+peak 200V; pos DC 100V, Total DC+peak 200V
Ratings — Class A1 Amplifier:
  Maximum plate voltage      300   volts
  Maximum grid #2 voltage    150   volts
  Maximum plate dissipation  10    watts
  Maximum grid #2 dissipation 1.25 watts
  Max grid #1 circuit resistance: fixed bias 0.1 megohm; cathode bias 0.5 megohm

===== PAGE 3 (JETEC 191B) =====
Typical Operating Conditions and Characteristics, Class A1 Amplifier (single tube):
  Plate voltage              110    200    volts
  Grid #2 voltage            110    125    volts
  Grid #1 voltage            -7.5   -      volts
  Cathode bias resistor      -      180    ohms
  Peak AF grid #1 voltage    7.5    8.5    volts
  Zero-signal plate current  49     46     ma
  Maximum-signal plate current 50   47     ma
  Zero-signal grid #2 current 4.0   2.2    ma
  Maximum-signal grid #2 current 10  8.5   ma
  Plate resistance (approx)  13000  28000  ohms
  Transconductance           8000   8000   µmhos
  Maximum-signal power output 2.1   3.8    watts
  Load resistance            2000   4000   ohms
  Total harmonic distortion (approx) 10  10  %

Vertical Deflection Amplifier — Triode Connected:
  Max DC plate voltage           300   volts
  Max peak positive voltage (abs max) 1200 volts
  Max plate dissipation          7.5   watts
  Max peak negative grid voltage 250   volts
  Max average cathode current    60    ma
  Max peak cathode current       180   ma
  Max grid circuit resistance (cathode bias) 2.2 megohms

Vertical Deflection Amplifier — Pentode Connected:
  Max DC plate voltage           300   volts
  Max peak positive plate voltage (abs max) 1500 volts
  Max DC grid #2 voltage         150   volts
  Max plate dissipation          7.0   watts
  Max grid #2 dissipation        1.0   watt
  Max peak negative grid #1 voltage 250 volts
  Max average cathode current    60    ma
  Max peak cathode current       180   ma
  Max grid #1 circuit resistance (cathode bias) 2.2 megohms

Average Characteristics — Triode Connected:
  Plate voltage              225    volts
  Grid voltage               -30    volts
  Plate current              22     ma
  Transconductance           3800   µmhos
  Amplification factor       6.2
  Plate resistance (approx)  1600   ohms
  Grid voltage (approx) for Ib=0.5 ma  -42  volts

===== PAGE 4 (JETEC 191B) =====
Footnotes (§ design center; §§ 525-line 30-frame TV; # grid-leak bias protection). "Refer to Interpretation of Receiving Tube Ratings". JETEC Comm. JTC-5, January 16, 1956. [pas de données tabulaires supplémentaires]