Tube cross-reference
17AB9 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 17AB9 voltage dual tetrode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 17AB9
The following tubes are recorded as possible replacements for 17AB9. This direction does not establish that 17AB9 can replace them.
Voltage Dual Tetrode
The database records 15AB9 as a possible replacement for17AB9.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Dual Tetrode | Voltage Dual Tetrode |
| Construction | Tetrode-Tetrode | Tetrode-Tetrode |
| Base | Not recorded | Not recorded |
| Socket | B10B | B10B |
| Base pins | 10 | 10 |
| Sections | 2 | 2 |
| Heater voltage | 16.8 V | 15 V |
| Heater current | 0.15 A | 0.15 A |
Where 17AB9 can be used as the replacement
In these recorded relationships, 17AB9 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 17AB9.
Voltage Dual Tetrode
The database records 17AB9 as a possible replacement for15AB9.
No special restrictions are recorded for this substitution.
| Specification | 17AB9 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Dual Tetrode | Voltage Dual Tetrode |
| Construction | Tetrode-Tetrode | Tetrode-Tetrode |
| Base | Not recorded | Not recorded |
| Socket | B10B | B10B |
| Base pins | 10 | 10 |
| Sections | 2 | 2 |
| Heater voltage | 16.8 V | 15 V |
| Heater current | 0.15 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 17AB9 specifications →