Tube cross-reference
LY88 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the LY88 rectifier - damper diode. Compare core specifications and verify every restriction before using a replacement.
Exact variations of LY88
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.
20AQ3 Rectifier - Damper Diode
- Base
- 9CB
- Socket
- B9A
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 20.2 V
- Heater current
- 0.45 A
Replacement tubes for LY88
The following tubes are recorded as possible replacements for LY88. This direction does not establish that LY88 can replace them.
Rectifier - Damper Diode
The database records 20AQ3 as a possible replacement forLY88.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Damper Diode |
| Construction | Rectifier | Rectifier |
| Base | 9CB | 9CB |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 20.2 V | 20.2 V |
| Heater current | 0.45 A | 0.45 A |
Where LY88 can be used as the replacement
In these recorded relationships, LY88 is the replacement tube. The listed original tubes are not automatically suitable as replacements for LY88.
Rectifier - Damper Diode
The database records LY88 as a possible replacement for20AQ3.
No special restrictions are recorded for this substitution.
| Specification | LY88 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Damper Diode |
| Construction | Rectifier | Rectifier |
| Base | 9CB | 9CB |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 20.2 V | 20.2 V |
| Heater current | 0.45 A | 0.45 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 LY88 specifications →