Tube cross-reference
1AE4 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 1AE4 voltage pentode - sharp cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Where 1AE4 can be used as the replacement
In these recorded relationships, 1AE4 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1AE4.
Voltage Pentode - Sharp Cutoff (single)
The database records 1AE4 as a possible replacement for1AF4.
- Parallel heater circuits only
| Specification | 1AE4 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | 6AR | 6AR |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 1.25 V | 1.4 V |
| Heater current | 0.1 A | 0.025 A |
Voltage Pentode or Tetrode (under 100V)
The database records 1AE4 as a possible replacement for1AJ4.
- Parallel heater circuits only
| Specification | 1AE4 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | 6AR | 6AR |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 1.25 V | 1.4 V |
| Heater current | 0.1 A | 0.025 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 1AE4 as a possible replacement for1L4.
- Parallel heater circuits only
| Specification | 1AE4 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | 6AR | 6AR |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 1.25 V | 1.4 V |
| Heater current | 0.1 A | 0.05 A |
Voltage Pentode or Tetrode (under 100V)
The database records 1AE4 as a possible replacement for1T4.
- Parallel heater circuits only
| Specification | 1AE4 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | 6AR | 8AR |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 1.25 V | 1.4 V |
| Heater current | 0.1 A | 0.05 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 1AE4 specifications →