Tube cross-reference
9JW8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 9JW8 voltage triode pentode. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 9JW8
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.
PCF802 Voltage Triode Pentode
- Base
- B9A
- Socket
- B9A
- Base pins
- 9
- Sections
- 2
- Heater voltage
- 9 V
- Heater current
- 0.3 A
Replacement tubes for 9JW8
The following tubes are recorded as possible replacements for 9JW8. This direction does not establish that 9JW8 can replace them.
Voltage Triode Pentode
The database records PCF802 as a possible replacement for9JW8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 9 V | 9 V |
| Heater current | 0.3 A | 0.3 A |
Where 9JW8 can be used as the replacement
In these recorded relationships, 9JW8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 9JW8.
Voltage Triode Pentode
The database records 9JW8 as a possible replacement forPCF802.
No special restrictions are recorded for this substitution.
| Specification | 9JW8 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 9 V | 9 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 9JW8 specifications →