Tube cross-reference
959 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 959 voltage pentode - sharp cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 959
The following tubes are recorded as possible replacements for 959. This direction does not establish that 959 can replace them.
Voltage Pentode
The database records D3F as a possible replacement for959.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | 5BE | Not recorded |
| Socket | ACORN7 | ACORN5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 1.25 V | 1.25 V |
| Heater current | 0.05 A | 0.05 A |
Where 959 can be used as the replacement
In these recorded relationships, 959 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 959.
Voltage Pentode
The database records 959 as a possible replacement forD3F.
No special restrictions are recorded for this substitution.
| Specification | 959 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | 5BE | Not recorded |
| Socket | ACORN7 | ACORN5 |
| Base pins | 7 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 1.25 V | 1.25 V |
| Heater current | 0.05 A | 0.05 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 959 specifications →