Tube cross-reference
SR55 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the SR55 voltage regulator. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for SR55
The following tubes are recorded as possible replacements for SR55. This direction does not establish that SR55 can replace them.
0B2
American To ForeignVoltage Regulator
The database records 0B2 as a possible replacement forSR55.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Regulator | Voltage Regulator |
| Construction | VoltageRegulator | VoltageRegulator |
| Base | Not recorded | B7G |
| Socket | Not recorded | B7G |
| Base pins | Not recorded | 7 |
| Sections | 1 | 1 |
| Heater voltage | Not recorded | 0 V |
| Heater current | Not recorded | 0 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 SR55 specifications →