Tube cross-reference
12AD6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 12AD6 voltage pentode or tetrode (under 100v). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 12AD6
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
12GA6 Voltage Pentode or Tetrode (under 100V)
- Base
- 7CH
- Socket
- B7G
- Base pins
- 7
- Sections
- 1
- Heater voltage
- 12.6 V
- Heater current
- 0.15 A
Replacement tubes for 12AD6
The following tubes are recorded as possible replacements for 12AD6. This direction does not establish that 12AD6 can replace them.
Voltage Pentode or Tetrode (under 100V)
The database records 12AG6 as a possible replacement for12AD6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode or Tetrode (under 100V) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Heptode | Heptode |
| Base | 7CH | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Where 12AD6 can be used as the replacement
In these recorded relationships, 12AD6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 12AD6.
Voltage Pentode or Tetrode (under 100V)
The database records 12AD6 as a possible replacement for12AG6.
No special restrictions are recorded for this substitution.
| Specification | 12AD6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode or Tetrode (under 100V) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Heptode | Heptode |
| Base | 7CH | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 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 12AD6 specifications →