Tube cross-reference
R144 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the R144 voltage pentode - high frequency (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for R144
The following tubes are recorded as possible replacements for R144. This direction does not establish that R144 can replace them.
Voltage Pentode - Sharp Cutoff (single)
The database records 6AM6 as a possible replacement forR144.
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 | 7DB |
| Socket | Not recorded | B7G |
| Base pins | Not recorded | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where R144 can be used as the replacement
In these recorded relationships, R144 is the replacement tube. The listed original tubes are not automatically suitable as replacements for R144.
Voltage Pentode - Sharp Cutoff (single)
The database records R144 as a possible replacement for6AM6.
No special restrictions are recorded for this substitution.
| Specification | R144 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - High Frequency (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 7DB |
| Socket | Not recorded | B7G |
| Base pins | Not recorded | 7 |
| 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 R144 specifications →