Tube cross-reference
OG3 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the OG3 nixie. Compare core specifications and verify every restriction before using a replacement.
Where OG3 can be used as the replacement
In these recorded relationships, OG3 is the replacement tube. The listed original tubes are not automatically suitable as replacements for OG3.
5651
Foreign To AmericanVoltage Regulator
The database records OG3 as a possible replacement for5651.
No special restrictions are recorded for this substitution.
| Specification | OG3 replacement | Original tube |
|---|---|---|
| Tube type | Nixie | Voltage Regulator |
| Construction | Nixie | VoltageRegulator |
| Base | Not recorded | 5BO |
| Socket | Not recorded | B7G |
| Base pins | Not recorded | 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 OG3 specifications →