Tube cross-reference
U37 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the U37 rectifier - tv line scan boost. Compare core specifications and verify every restriction before using a replacement.
Exact variations of U37
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.
1T2 Rectifier - TV Line Scan Boost
- Base
- 1T2
- Socket
- Not recorded
- Base pins
- 2
- Sections
- 1
- Heater voltage
- 1.4 V
- Heater current
- 0.14 A
Replacement tubes for U37
The following tubes are recorded as possible replacements for U37. This direction does not establish that U37 can replace them.
Rectifier - TV Line Scan Boost
The database records 1T2 as a possible replacement forU37.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - TV Line Scan Boost | Rectifier - TV Line Scan Boost |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | 1T2 |
| Socket | Not recorded | Not recorded |
| Base pins | Not recorded | 2 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.14 A | 0.14 A |
Where U37 can be used as the replacement
In these recorded relationships, U37 is the replacement tube. The listed original tubes are not automatically suitable as replacements for U37.
Rectifier - TV Line Scan Boost
The database records U37 as a possible replacement for1T2.
No special restrictions are recorded for this substitution.
| Specification | U37 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - TV Line Scan Boost | Rectifier - TV Line Scan Boost |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | 1T2 |
| Socket | Not recorded | Not recorded |
| Base pins | Not recorded | 2 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.14 A | 0.14 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 U37 specifications →