Tube cross-reference
4X150D alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 4X150D power - tetrode (not beam) (over 1000v 100w). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 4X150D
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.
7035 Power - Beam (NOT sweep) (over 1000V 100W)
- Base
- Not recorded
- Socket
- B9A
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 26.5 V
- Heater current
- 0.58 A
Where 4X150D can be used as the replacement
In these recorded relationships, 4X150D is the replacement tube. The listed original tubes are not automatically suitable as replacements for 4X150D.
Power - Beam (NOT sweep) (over 1000V 100W)
The database records 4X150D as a possible replacement for7035.
No special restrictions are recorded for this substitution.
| Specification | 4X150D replacement | Original tube |
|---|---|---|
| Tube type | Power - Tetrode (NOT beam) (over 1000V 100W) | Power - Beam (NOT sweep) (over 1000V 100W) |
| Construction | Tetrode | BeamPower |
| Base | Not recorded | Not recorded |
| Socket | RADIALRING9 | B9A |
| Base pins | Not recorded | 9 |
| Sections | 1 | 1 |
| Heater voltage | 26.5 V | 26.5 V |
| Heater current | 0.57 A | 0.58 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 4X150D specifications →