Tube cross-reference
1M5G alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 1M5G voltage pentode - remote cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 1M5G
The following tubes are recorded as possible replacements for 1M5G. This direction does not establish that 1M5G can replace them.
Voltage Pentode - Remote Cutoff (single)
The database records 1D5GP as a possible replacement for1M5G.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 5Y |
| Socket | Not recorded | UX5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.12 A | 0.06 A |
Voltage Tetrode
The database records 1D5GT as a possible replacement for1M5G.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Tetrode |
| Construction | Pentode | Tetrode |
| Base | Not recorded | 5R |
| Socket | Not recorded | UX5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.12 A | 0.06 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 1E5GP as a possible replacement for1M5G.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 5Y |
| Socket | Not recorded | UX5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.12 A | 0.06 A |
Where 1M5G can be used as the replacement
In these recorded relationships, 1M5G is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1M5G.
Voltage Pentode - Remote Cutoff (single)
The database records 1M5G as a possible replacement for1D5GP.
- Parallel heater circuits only
| Specification | 1M5G replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 5Y |
| Socket | Not recorded | UX5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.12 A | 0.06 A |
Voltage Tetrode
The database records 1M5G as a possible replacement for1D5GT.
- Parallel heater circuits only
| Specification | 1M5G replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Tetrode |
| Construction | Pentode | Tetrode |
| Base | Not recorded | 5R |
| Socket | Not recorded | UX5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.12 A | 0.06 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 1M5G as a possible replacement for1E5GP.
- Parallel heater circuits only
| Specification | 1M5G replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 5Y |
| Socket | Not recorded | UX5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2 V | 2 V |
| Heater current | 0.12 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 1M5G specifications →