Tube cross-reference
6M2 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6M2 tuning indicator. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6M2
The following tubes are recorded as possible replacements for 6M2. This direction does not establish that 6M2 can replace them.
6CD7
American To ForeignTuning Indicator
The database records 6CD7 as a possible replacement for6M2.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Tuning Indicator | Tuning Indicator |
| Construction | Triode-TuningIndicator | Triode-TuningIndicator |
| Base | IO8 | 8EV |
| Socket | IO | IO |
| Base pins | 8 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.2 A | 0.2 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 6M2 specifications →