Tube cross-reference
7499 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 7499 voltage pentode. Compare core specifications and verify every restriction before using a replacement.
Where 7499 can be used as the replacement
In these recorded relationships, 7499 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 7499.
Power - Pentode (NOT beam)
The database records 7499 as a possible replacement for6CH6.
No special restrictions are recorded for this substitution.
| Specification | 7499 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode | Power - Pentode (NOT beam) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 9BA |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.75 A | 0.75 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 7499 specifications →