Tube cross-reference
1S2A alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 1S2A rectifier - tv line scan boost. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 1S2A
The following tubes are recorded as possible replacements for 1S2A. This direction does not establish that 1S2A can replace them.
Rectifier - TV Line Scan Boost
The database records DY87 as a possible replacement for1S2A.
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 | E91 | NOVAL |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.55 A | 0.55 A |
Where 1S2A can be used as the replacement
In these recorded relationships, 1S2A is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1S2A.
Rectifier - TV Line Scan Boost
The database records 1S2A as a possible replacement forDY87.
No special restrictions are recorded for this substitution.
| Specification | 1S2A replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - TV Line Scan Boost | Rectifier - TV Line Scan Boost |
| Construction | Rectifier | Rectifier |
| Base | E91 | NOVAL |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 1.4 V | 1.4 V |
| Heater current | 0.55 A | 0.55 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 1S2A specifications →