Data set 01
1961 Tung Sol
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Service
Horizontal-deflection amplifier
Heater Warmup Time
11 s
Power - TV Horizontal Output (sweep) ·BeamPower
12DQ6A
Television horizontal-output beam-power tube combining approximately 15 W plate dissipation with high peak current and multi-kilovolt flyback pulse handling.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 6AM
- Socket code
- OCTAL7
- Base pins
- 7
- Nominal heater
- 12.6 V / 600 mA
Description
The 12DQ6A is a beam-power pentode designed primarily as a television horizontal-deflection amplifier, with very high pulse plate-voltage and peak-current ratings for sweep output service.
Socket description
7-contact octal-family base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 6AM
- Socket code
- OCTAL7
- Base pins
- 7
- Nominal heater voltage
- 12.6 V
- Nominal heater current
- 600 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
6AM - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1Pin 1 | — | NC May be omitted on some physical base variants | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| PIN2Pin 2 | — | H — Heater | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| PIN3Pin 3 | — | NC | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| PIN4Pin 4 | A | G2 — Screen Grid | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| PIN5Pin 5 | A | G1 — Control Grid | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| PIN7Pin 7 | — | H — Heater | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| PIN8Pin 8 | A | BP — Beam-Forming PlateGroup AM8 | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| PIN8Pin 8 | A | K — CathodeGroup AM8 | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
| CAP1Top cap | A | P — Plate (Anode) | Verified 6AM manufacturer basing; 12DQ6A Tung-Sol, 6BQ6GT Sylvania/Tung-Sol; bottom view |
Section ratings
1 physical section, each with unique specifications.
Section 1
Beam Power
X-ray radiationInterelectrode capacitances
- Plate resistance
- 20000 Ω
- Transconductance
- 0.0066 S
- Max plate voltage
- 700 V
- Max screen voltage
- 200 V
- Max plate dissipation
- 15 W
- Max screen dissipation
- 3 W
- Max cathode current
- 140 mA
Horizontal-deflection service; 6000 V peak pulse plate rating retained as parameter.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 02
1965 Westinghouse Data Book
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Peak positive plate voltage maximum
6000 V
Pulse
Peak negative pulse plate voltage maximum
-1000 V
Pulse
Average cathode current maximum
150 mA
Peak cathode current maximum
500 mA
Pulse
Typical plate voltage
250 V
Typical grid2 voltage
150 V
Characteristics
Transconductance
6500 uS
Application
Application
Horizontal-deflection output amplifier
Data set 03
1966 Tung Sol Electronic Tubes 2 of 4
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
Plate supply voltage DC boost plus power supply
770 V
HorizontalDeflection
Peak positive pulse plate voltage
6000 V
HorizontalDeflection
Peak negative pulse plate voltage
1500 V
HorizontalDeflection
Peak negative grid 1 voltage
330 V
HorizontalDeflection
Peak cathode current
540 mA
HorizontalDeflection
Characteristic
Plate current at 250 V plate, 150 V screen
55 mA
PentodeOperation
Screen current at 250 V plate, 150 V screen
1.5 mA
PentodeOperation
Triode mu
4.5
TriodeConnection
Data set 04
1968 General Electric Co
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Other
HeaterVoltageNominal
12.6 V
HeaterCurrentNominal
600 mA
Peak Positive Pulse Plate Voltage
6000 V
HorizontalDeflection
Peak Negative Pulse Plate Voltage
1375 V
HorizontalDeflection
Peak Cathode Current
440 mA
HorizontalDeflection
Characteristic
Plate Resistance
20000 Ohm
Transconductance
6600 uS
Data set 05
1971 RCA HB3 Binder 5 of 7
Published operating points and test conditions from this source.
SECTION 1
Beam Power
Characteristics
Voltage (AC or DC)
12.6 V
Published value from the filename-designated RCA datasheet block; multiple numbers on one row represent separate limits or heater arrangements.
Current — published value 1
600 mA
Published value from the filename-designated RCA datasheet block; multiple numbers on one row represent separate limits or heater arrangements.
Current — published value 2
6 A
Published value from the filename-designated RCA datasheet block; multiple numbers on one row represent separate limits or heater arrangements.
Voltage IAC or DC)
12.6 V
Published value from the filename-designated RCA datasheet block; multiple numbers on one row represent separate limits or heater arrangements.
Warm-up time (Average)
11
Published value from the filename-designated RCA datasheet block; multiple numbers on one row represent separate limits or heater arrangements.
Heater voltage
12.6 V
Nominal heater rating
Heater current
600 mA
Nominal heater rating