Tube cross-reference
DY87 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the DY87 rectifier - tv line scan boost. Compare core specifications and verify every restriction before using a replacement.
Exact variations of DY87
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.
DY86 Rectifier - TV Line Scan Boost
- Base
- NOVAL
- Socket
- B9A
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 1.4 V
- Heater current
- 0.55 A
Replacement tubes for DY87
The following tubes are recorded as possible replacements for DY87. This direction does not establish that DY87 can replace them.
Rectifier - TV Line Scan Boost
The database records 1S2A as a possible replacement forDY87.
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 | NOVAL | E91 |
| 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 DY87 can be used as the replacement
In these recorded relationships, DY87 is the replacement tube. The listed original tubes are not automatically suitable as replacements for DY87.
Rectifier - TV Line Scan Boost
The database records DY87 as a possible replacement for1S2A.
No special restrictions are recorded for this substitution.
| Specification | DY87 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - TV Line Scan Boost | Rectifier - TV Line Scan Boost |
| Construction | Rectifier | Rectifier |
| Base | NOVAL | E91 |
| 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 DY87 specifications →