Tube cross-reference
85A1 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 85A1 voltage regulator. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 85A1
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.
0E3 Voltage Regulator
- Base
- Not recorded
- Socket
- Not recorded
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- Not recorded
- Heater current
- Not recorded
Replacement tubes for 85A1
The following tubes are recorded as possible replacements for 85A1. This direction does not establish that 85A1 can replace them.
Voltage Regulator
The database records 0E3 as a possible replacement for85A1.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Regulator | Voltage Regulator |
| Construction | VoltageRegulator | VoltageRegulator |
| Base | Loctal | Not recorded |
| Socket | B8G | Not recorded |
| Base pins | 8 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | Not recorded | Not recorded |
| Heater current | Not recorded | Not recorded |
Where 85A1 can be used as the replacement
In these recorded relationships, 85A1 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 85A1.
Voltage Regulator
The database records 85A1 as a possible replacement for0E3.
No special restrictions are recorded for this substitution.
| Specification | 85A1 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Regulator | Voltage Regulator |
| Construction | VoltageRegulator | VoltageRegulator |
| Base | Loctal | Not recorded |
| Socket | B8G | Not recorded |
| Base pins | 8 | Not recorded |
| 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 85A1 specifications →