Tube cross-reference
417A alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 417A voltage - triode (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 417A
The following tubes are recorded as possible replacements for 417A. This direction does not establish that 417A can replace them.
Voltage - Triode (single)
The database records 5842 as a possible replacement for417A.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (single) | Voltage - Triode (single) |
| Construction | Triode | Triode |
| Base | 9V | 9V |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 417A can be used as the replacement
In these recorded relationships, 417A is the replacement tube. The listed original tubes are not automatically suitable as replacements for 417A.
Voltage - Triode (single)
The database records 417A as a possible replacement for5842.
No special restrictions are recorded for this substitution.
| Specification | 417A replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (single) | Voltage - Triode (single) |
| Construction | Triode | Triode |
| Base | 9V | 9V |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 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 417A specifications →