Tube cross-reference
LCF801 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the LCF801 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Exact variations of LCF801
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
5GJ7 Voltage Radio Detector Converter
- Base
- 9QA
- Socket
- B9A
- Base pins
- 9
- Sections
- 2
- Heater voltage
- 5.6 V
- Heater current
- 0.45 A
Replacement tubes for LCF801
The following tubes are recorded as possible replacements for LCF801. This direction does not establish that LCF801 can replace them.
Voltage Radio Detector Converter
The database records 5GJ7 as a possible replacement forLCF801.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9QA | 9QA |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 5.6 V | 5.6 V |
| Heater current | 0.45 A | 0.45 A |
Where LCF801 can be used as the replacement
In these recorded relationships, LCF801 is the replacement tube. The listed original tubes are not automatically suitable as replacements for LCF801.
Voltage Radio Detector Converter
The database records LCF801 as a possible replacement for5GJ7.
No special restrictions are recorded for this substitution.
| Specification | LCF801 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9QA | 9QA |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 5.6 V | 5.6 V |
| Heater current | 0.45 A | 0.45 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 LCF801 specifications →