Tube cross-reference
19X3 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 19X3 rectifier - damper diode. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 19X3
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.
PY80 Rectifier - Damper Diode
- Base
- Noval
- Socket
- B9A
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 19 V
- Heater current
- 0.3 A
Replacement tubes for 19X3
The following tubes are recorded as possible replacements for 19X3. This direction does not establish that 19X3 can replace them.
Rectifier - Damper Diode
The database records PY80 as a possible replacement for19X3.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Damper Diode |
| Construction | Rectifier | Rectifier |
| Base | 9BM | Noval |
| Socket | Not recorded | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 19 V | 19 V |
| Heater current | 0.3 A | 0.3 A |
Rectifier - Damper Diode
The database records U309 as a possible replacement for19X3.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Damper Diode |
| Construction | Rectifier | Rectifier |
| Base | 9BM | Not recorded |
| Socket | Not recorded | B9A |
| Base pins | 9 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 19 V | 20 V |
| Heater current | 0.3 A | 0.3 A |
Where 19X3 can be used as the replacement
In these recorded relationships, 19X3 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 19X3.
Rectifier - Damper Diode
The database records 19X3 as a possible replacement forPY80.
No special restrictions are recorded for this substitution.
| Specification | 19X3 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Damper Diode |
| Construction | Rectifier | Rectifier |
| Base | 9BM | Noval |
| Socket | Not recorded | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 19 V | 19 V |
| Heater current | 0.3 A | 0.3 A |
Rectifier - Damper Diode
The database records 19X3 as a possible replacement forU309.
No special restrictions are recorded for this substitution.
| Specification | 19X3 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Damper Diode |
| Construction | Rectifier | Rectifier |
| Base | 9BM | Not recorded |
| Socket | Not recorded | B9A |
| Base pins | 9 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 19 V | 20 V |
| Heater current | 0.3 A | 0.3 A |
Rectifier - Half Wave
The database records 19X3 as a possible replacement for19Y3.
No special restrictions are recorded for this substitution.
| Specification | 19X3 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Damper Diode | Rectifier - Half Wave |
| Construction | Rectifier | Rectifier |
| Base | 9BM | 9BM |
| Socket | Not recorded | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 19 V | 19 V |
| Heater current | 0.3 A | 0.3 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 19X3 specifications →