Tube cross-reference
UCH42 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the UCH42 voltage - triode (with diode, heptode or hexode). Compare core specifications and verify every restriction before using a replacement.
Exact variations of UCH42
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.
14K7 Voltage - Triode (with diode, heptode or hexode)
- Base
- LOCTAL
- Socket
- B8G
- Base pins
- 8
- Sections
- 2
- Heater voltage
- 14 V
- Heater current
- 0.15 A
Replacement tubes for UCH42
The following tubes are recorded as possible replacements for UCH42. This direction does not establish that UCH42 can replace them.
Voltage - Triode (with diode, heptode or hexode)
The database records 14K7 as a possible replacement forUCH42.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Hexode-Triode | Hexode-Triode |
| Base | Not recorded | LOCTAL |
| Socket | B8A | B8G |
| Base pins | 8 | 8 |
| Sections | 2 | 2 |
| Heater voltage | 14 V | 14 V |
| Heater current | 0.1 A | 0.15 A |
Where UCH42 can be used as the replacement
In these recorded relationships, UCH42 is the replacement tube. The listed original tubes are not automatically suitable as replacements for UCH42.
Voltage - Triode (with diode, heptode or hexode)
The database records UCH42 as a possible replacement for14K7.
No special restrictions are recorded for this substitution.
| Specification | UCH42 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Hexode-Triode | Hexode-Triode |
| Base | Not recorded | LOCTAL |
| Socket | B8A | B8G |
| Base pins | 8 | 8 |
| Sections | 2 | 2 |
| Heater voltage | 14 V | 14 V |
| Heater current | 0.1 A | 0.15 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 UCH42 specifications →