Tube cross-reference
EF730 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EF730 voltage pentode - high frequency (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for EF730
The following tubes are recorded as possible replacements for EF730. This direction does not establish that EF730 can replace them.
Voltage Radio Detector Converter
The database records 5636 as a possible replacement forEF730.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - High Frequency (single) | Voltage Radio Detector Converter |
| Construction | Pentode | Pentode |
| Base | Not recorded | 8DC |
| Socket | WIRE8 | SUBMINIATURE8 |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 0.15 A |
Where EF730 can be used as the replacement
In these recorded relationships, EF730 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EF730.
Voltage Radio Detector Converter
The database records EF730 as a possible replacement for5636.
No special restrictions are recorded for this substitution.
| Specification | EF730 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - High Frequency (single) | Voltage Radio Detector Converter |
| Construction | Pentode | Pentode |
| Base | Not recorded | 8DC |
| Socket | WIRE8 | SUBMINIATURE8 |
| 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 EF730 specifications →