Tube cross-reference
XF94 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the XF94 voltage pentode - high frequency (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for XF94
The following tubes are recorded as possible replacements for XF94. This direction does not establish that XF94 can replace them.
Voltage Pentode - Sharp Cutoff (single)
The database records 3AU6 as a possible replacement forXF94.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - High Frequency (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 7BK |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 3.15 V | 3.15 V |
| Heater current | 0.6 A | 0.6 A |
Where XF94 can be used as the replacement
In these recorded relationships, XF94 is the replacement tube. The listed original tubes are not automatically suitable as replacements for XF94.
Voltage Pentode - Sharp Cutoff (single)
The database records XF94 as a possible replacement for3AU6.
No special restrictions are recorded for this substitution.
| Specification | XF94 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - High Frequency (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 7BK |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 3.15 V | 3.15 V |
| Heater current | 0.6 A | 0.6 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 XF94 specifications →