Tube cross-reference
1H4G alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 1H4G power - triode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 1H4G
The following tubes are recorded as possible replacements for 1H4G. This direction does not establish that 1H4G can replace them.
Power - Triode
The database records 1H4GT as a possible replacement for1H4G.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Triode | Power - Triode |
| Construction | Triode | Triode |
| Base | 5S | 5S |
| Socket | IO | Not recorded |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.06 A | 0.06 A |
Where 1H4G can be used as the replacement
In these recorded relationships, 1H4G is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1H4G.
Power - Triode
The database records 1H4G as a possible replacement for1H4GT.
No special restrictions are recorded for this substitution.
| Specification | 1H4G replacement | Original tube |
|---|---|---|
| Tube type | Power - Triode | Power - Triode |
| Construction | Triode | Triode |
| Base | 5S | 5S |
| Socket | IO | Not recorded |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.06 A | 0.06 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 1H4G specifications →