Tube cross-reference
18GV8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 18GV8 power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 18GV8
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.
PCL85 Power - TV Vertical Output
- Base
- B9A
- Socket
- B9A
- Base pins
- 9
- Sections
- 2
- Heater voltage
- 18 V
- Heater current
- 0.3 A
Replacement tubes for 18GV8
The following tubes are recorded as possible replacements for 18GV8. This direction does not establish that 18GV8 can replace them.
Power - TV Vertical Output
The database records PCL85 as a possible replacement for18GV8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - TV Vertical Output |
| Construction | Pentode-Triode | BeamPower-Triode |
| Base | 9LY | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 18 V | 18 V |
| Heater current | 0.3 A | 0.3 A |
Where 18GV8 can be used as the replacement
In these recorded relationships, 18GV8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 18GV8.
Power - TV Vertical Output
The database records 18GV8 as a possible replacement forPCL85.
No special restrictions are recorded for this substitution.
| Specification | 18GV8 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - TV Vertical Output |
| Construction | Pentode-Triode | BeamPower-Triode |
| Base | 9LY | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 18 V | 18 V |
| Heater current | 0.3 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 18GV8 specifications →