Tube cross-reference
85A2 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 85A2 voltage regulator. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 85A2
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.
Replacement tubes for 85A2
The following tubes are recorded as possible replacements for 85A2. This direction does not establish that 85A2 can replace them.
Voltage Regulator
The database records 0G3 as a possible replacement for85A2.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Regulator | Voltage Regulator |
| Construction | VoltageRegulator | VoltageRegulator |
| Base | Miniature | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | Not recorded | Not recorded |
| Heater current | Not recorded | Not recorded |
Where 85A2 can be used as the replacement
In these recorded relationships, 85A2 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 85A2.
Voltage Regulator
The database records 85A2 as a possible replacement for0G3.
No special restrictions are recorded for this substitution.
| Specification | 85A2 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Regulator | Voltage Regulator |
| Construction | VoltageRegulator | VoltageRegulator |
| Base | Miniature | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | Not recorded | Not recorded |
| Heater current | Not recorded | Not recorded |
Voltage Regulator
The database records 85A2 as a possible replacement for5651.
No special restrictions are recorded for this substitution.
| Specification | 85A2 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Regulator | Voltage Regulator |
| Construction | VoltageRegulator | VoltageRegulator |
| Base | Miniature | 5BO |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | Not recorded | Not recorded |
| Heater current | Not recorded | Not recorded |
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 85A2 specifications →