Tube cross-reference
1A7G alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 1A7G voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 1A7G
The following tubes are recorded as possible replacements for 1A7G. This direction does not establish that 1A7G can replace them.
Voltage Radio Detector Converter
The database records 1A7GT as a possible replacement for1A7G.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7Z | 7Z |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.05 A | 0.05 A |
Voltage Radio Detector Converter
The database records 1B7G as a possible replacement for1A7G.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7Z | 7Z |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.05 A | 0.1 A |
Voltage Radio Detector Converter
The database records 1B7GT as a possible replacement for1A7G.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7Z | 7Z |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.05 A | 0.1 A |
Where 1A7G can be used as the replacement
In these recorded relationships, 1A7G is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1A7G.
Voltage Radio Detector Converter
The database records 1A7G as a possible replacement for1A7GT.
No special restrictions are recorded for this substitution.
| Specification | 1A7G replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7Z | 7Z |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.05 A | 0.05 A |
Voltage Radio Detector Converter
The database records 1A7G as a possible replacement for1B7G.
- Parallel heater circuits only
| Specification | 1A7G replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7Z | 7Z |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.05 A | 0.1 A |
Voltage Radio Detector Converter
The database records 1A7G as a possible replacement for1B7GT.
- Parallel heater circuits only
| Specification | 1A7G replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7Z | 7Z |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.05 A | 0.1 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 1A7G specifications →