12DQ6

Name: 12DQ6
Brand: GE

Beam Tetrode — Octal — GE

Data: MediumMedium quality — at least 60% of universal parameters and pins are present, but some key data is missing. Verify specific values against datasheets before critical use.

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Known Equivalents & Substitutes

12DQ6A12DQ6B

Similar Tubes (Not Drop-In Compatible)

12CU6

Brans lists as equivalent — similar beam power tube for horizontal deflection, same heater

17DQ6

Same tube with 16.8V heater — different series-string voltage

6DQ6

Electrically identical but 6.3V heater — not interchangeable in series-string heater circuits

6GW6

Brans lists in same group — similar beam power tube but 6.3V heater

Electrical Specifications

Absolute Maximum

Anode Voltage (max)Max Plate Voltage550V

Peak Anode Voltage (max)Max Peak Positive Plate Voltage6,000V

Screen Voltage (max)Max Screen Voltage175V

Anode Dissipation (max)Max Plate Dissipation15W

Screen Dissipation (max)

Notes

GE Essential Characteristics lists two variants: 12DQ6 and 12DQ6-A with slightly different gm (5500 vs 6600 umhos).
Designed for horizontal deflection amplifier service — peak anode voltage can reach 6000V during flyback.
Max plate dissipation 15W, max plate voltage 550V (DC), max screen voltage 175V.
12.6V/0.6A heater for series-string operation in television receivers.
Brans Vademecum cross-lists extensively with 6BQ6, 6CU6, 6DQ6, 6EM5, and their 12V/17V/25V heater variants.

Pin Layout — Octal

1No Connection

2Heater

3Plate

4

Socket-Compatible Tubes ⚠ Not electrically compatible

12AV5 12AX4 12E1 12J5 12J5GT 12W6GT 1H4 25L6GT 350B 367A 5881 6550 6A5G 6C2C 6CD6G

References