Tube cross-reference
3BW2 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 3BW2 rectifier - tv line scan boost. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 3BW2
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.
3BT2 Rectifier - TV Line Scan Boost
- Base
- Not recorded
- Socket
- IO
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- 3.15 V
- Heater current
- 0.48 A
Where 3BW2 can be used as the replacement
In these recorded relationships, 3BW2 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 3BW2.
Rectifier - TV Line Scan Boost
The database records 3BW2 as a possible replacement for3BS2A.
No special restrictions are recorded for this substitution.
| Specification | 3BW2 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - TV Line Scan Boost | Rectifier - TV Line Scan Boost |
| Construction | Rectifier | Rectifier |
| Base | 12HY | Not recorded |
| Socket | IO | IO |
| Base pins | 12 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 3.15 V | 3.15 V |
| Heater current | 0.48 A | 0.48 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 3BW2 specifications →