Tube cross-reference
5693 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 5693 voltage pentode - sharp cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Where 5693 can be used as the replacement
In these recorded relationships, 5693 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5693.
Voltage Pentode - Sharp Cutoff (single)
The database records 5693 as a possible replacement for6SJ7.
No special restrictions are recorded for this substitution.
| Specification | 5693 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | 8N | RETMA 8N |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| 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 5693 specifications →