Tube cross-reference
4GK5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 4GK5 voltage - triode (single high frequency). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 4GK5
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.
PC95 Voltage - Triode (single high frequency)
- Base
- MINIATURE
- Socket
- B7G
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- 3.7 V
- Heater current
- 0.3 A
Replacement tubes for 4GK5
The following tubes are recorded as possible replacements for 4GK5. This direction does not establish that 4GK5 can replace them.
Voltage - Triode (single high frequency)
The database records PC95 as a possible replacement for4GK5.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (single high frequency) | Voltage - Triode (single high frequency) |
| Construction | Triode | Triode |
| Base | 7FP | MINIATURE |
| Socket | B7G | B7G |
| Base pins | 7 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 4 V | 3.7 V |
| Heater current | 0.6 A | 0.3 A |
Where 4GK5 can be used as the replacement
In these recorded relationships, 4GK5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 4GK5.
Voltage - Triode (single high frequency)
The database records 4GK5 as a possible replacement forPC95.
No special restrictions are recorded for this substitution.
| Specification | 4GK5 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (single high frequency) | Voltage - Triode (single high frequency) |
| Construction | Triode | Triode |
| Base | 7FP | MINIATURE |
| Socket | B7G | B7G |
| Base pins | 7 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 4 V | 3.7 V |
| Heater current | 0.6 A | 0.3 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 4GK5 specifications →