Tube cross-reference
6CG3 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6CG3 rectifier - damper diode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6CG3
The following tubes are recorded as possible replacements for 6CG3. This direction does not establish that 6CG3 can replace them.
Rectifier - Damper Diode
The database records 6CD3 as a possible replacement for6CG3.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Damper Diode |
| Construction | Rectifier | Rectifier |
| Base | 12GK | 12FX |
| Socket | B9A | B9A |
| Base pins | 12 | 12 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 1.8 A | 1.8 A |
Verify before substituting
Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.
View the complete 6CG3 specifications →