Tube cross-reference
EF72 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EF72 voltage pentode - high frequency (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for EF72
The following tubes are recorded as possible replacements for EF72. This direction does not establish that EF72 can replace them.
Voltage Pentode - Sharp Cutoff (single)
The database records 5840 as a possible replacement forEF72.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - High Frequency (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 8DL |
| Socket | WIRE8 | B8D |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 0.15 A |
Where EF72 can be used as the replacement
In these recorded relationships, EF72 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EF72.
Voltage Pentode - Remote Cutoff (single)
The database records EF72 as a possible replacement for5901.
No special restrictions are recorded for this substitution.
| Specification | EF72 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - High Frequency (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 8DL |
| Socket | WIRE8 | B8D |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 0.15 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 EF72 specifications →