Tube cross-reference
6AT6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6AT6 voltage - triode (with diode, heptode or hexode). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6AT6
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.
EBC90 Voltage - Triode (with diode, heptode or hexode)
- Base
- Not recorded
- Socket
- B7G
- Base pins
- Not recorded
- Sections
- 3
- Heater voltage
- 6.3 V
- Heater current
- 0.3 A
Replacement tubes for 6AT6
The following tubes are recorded as possible replacements for 6AT6. This direction does not establish that 6AT6 can replace them.
Voltage - Triode (with diode, heptode or hexode)
The database records 6BC32 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Triode |
| Base | 7BT | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | Not recorded |
| Sections | 3 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records DH77 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | Not recorded |
| Socket | B7G | Not recorded |
| Base pins | 7 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records EBC90 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records EBC91 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6066 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6AQ6 as a possible replacement for6AT6.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.15 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6AV6 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6BK6 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6BT6 as a possible replacement for6AT6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 6AT6 can be used as the replacement
In these recorded relationships, 6AT6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6AT6.
Voltage - Triode (with diode, heptode or hexode)
The database records 6AT6 as a possible replacement forDH77.
No special restrictions are recorded for this substitution.
| Specification | 6AT6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | Not recorded |
| Socket | B7G | Not recorded |
| Base pins | 7 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6AT6 as a possible replacement forEBC90.
No special restrictions are recorded for this substitution.
| Specification | 6AT6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6AT6 as a possible replacement for6AQ6.
- Parallel heater circuits only
| Specification | 6AT6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.15 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6AT6 as a possible replacement for6AV6.
No special restrictions are recorded for this substitution.
| Specification | 6AT6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6AT6 as a possible replacement for6BK6.
No special restrictions are recorded for this substitution.
| Specification | 6AT6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6AT6 as a possible replacement for6BT6.
No special restrictions are recorded for this substitution.
| Specification | 6AT6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 7BT | 7BT |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 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 6AT6 specifications →