TUBE: 6CD6GA (supersedes 6CD6-G)
SOURCE FILE: sheets/049/6/6CD6GA.pdf
MANUFACTURER: RCA (Radio Corporation of America, Tube Division, Harrison, New Jersey)
YEAR: 1956 (footer 10-56, TENTATIVE DATA)
PAGES: 5

===== PAGE 1 =====
RCA 6CD6-GA — BEAM POWER TUBE — Supersedes Type 6CD6-G
GENERAL DATA
Electrical:
Heater, for Unipotential Cathode:
  Voltage ........ 6.3 ac or dc volts
  Current ........ 2.5 amp
Direct Interelectrode Capacitances (Approx.):
  Grid No.1 to plate ........ 1.1 µµf
  Grid No.1 to cathode & grid No.3, grid No.2, and heater ........ 22 µµf
  Plate to cathode & grid No.3, grid No.2, and heater ........ 8.5 µµf
Characteristics, Class A1 Amplifier (2 columns):
  Plate Voltage ........ 60 / 175 volts
  Grid-No.2 (Screen-grid) Voltage ........ 100 / 175 volts
  Grid-No.1 (Control-grid) Voltage ........ 0 / -30 volts
  Mu-Factor, Grid No.2 to Grid No.1 ........ - / 3.9
  Plate Resistance (Approx.) ........ - / 7200 ohms
  Transconductance ........ - / 7700 µmhos
  Plate Current ........ 230* / 75 ma
  Grid-No.2 Current ........ 21* / 5.5 ma
  Grid-No.1 Voltage (Approx.) for plate current of 1 ma ........ - / -55 volts
Mechanical:
  Mounting Position: Vertical, base up or down, or Horizontal with pins 2 and 7 in vertical plane
  Maximum Overall Length: 5"
  Seated Length: 4-1/4" ±3/16"
  Maximum Diameter: 1-9/16"
  Bulb: T-12
  Cap: Small (JETEC No.C1-1)
  Base: Short Medium-Shell Octal 8-Pin with External Barriers, Style A (JETEC B8-110) or Style B (JETEC B8-118)
  Basing Designation for BOTTOM VIEW: 5BT
Pinout:
  Pin 1 - No Connection
  Pin 2 - Heater
  Pin 3 - Cathode, Grid No.3
  Pin 4 - No Connection
  Pin 5 - Grid No.1
  Pin 6 - No Connection
  Pin 7 - Heater
  Pin 8 - Grid No.2
  Cap - Plate
Footnote (*): values measurable by recurrent waveform method to keep cathode current within ratings.

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HORIZONTAL DEFLECTION AMPLIFIER
Maximum Ratings, Design-Center Values Except as Noted (525-line, 30-frame system):
  DC PLATE VOLTAGE ........ 700 max. volts
  PEAK POSITIVE-PULSE PLATE VOLTAGE (Absolute maximum) ........ 7000 max. volts
  PEAK NEGATIVE-PULSE PLATE VOLTAGE ........ 1500 max. volts
  DC GRID-No.2 (SCREEN-GRID) VOLTAGE ........ 175 max. volts
  DC GRID-No.1 (CONTROL-GRID) VOLTAGE ........ -50 max. volts
  PEAK NEGATIVE-PULSE GRID-No.1 VOLTAGE ........ 200 max. volts
  CATHODE CURRENT: Peak ........ 700 max. ma; Average ........ 200 max. ma
  GRID-No.2 INPUT ........ 3 max. watts
  PLATE DISSIPATION ........ 20 max. watts
  PEAK HEATER-CATHODE VOLTAGE: Heater negative wrt cathode ........ 200 max. volts; Heater positive wrt cathode ........ 200 max. volts (dc component must not exceed 100 volts)
  BULB TEMPERATURE (hottest point) ........ 225 max. °C
Maximum Circuit Values:
  Grid-No.1-Circuit Resistance: For grid-resistor-bias operation ........ 0.47 max. megohm

===== PAGE 3 =====
[courbes seules — pas de données tabulaires] Physical dimensional outline (T12 bulb, small cap C1-1, short medium-shell octal 8-pin base B8-110/B8-118, 5" max). 92CS-9012

===== PAGE 4 =====
[courbes seules — pas de données tabulaires] AVERAGE CHARACTERISTICS (Ef=6.3 V, Grid-No.2 Volts=175; plate & screen current vs plate volts). 92CM-9017

===== PAGE 5 =====
[courbes seules — pas de données tabulaires] AVERAGE CHARACTERISTICS (Ef=6.3 V, Grid-No.1 Volts=0; plate current vs plate volts at various Ec2). 92CM-9016