Tube cross-reference
M8204 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the M8204 specialized - thyratron. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for M8204
The following tubes are recorded as possible replacements for M8204. This direction does not establish that M8204 can replace them.
Specialized - Thyratron
The database records 5727 as a possible replacement forM8204.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Specialized - Thyratron | Specialized - Thyratron |
| Construction | Thyratron | Thyratron |
| Base | Not recorded | E7-1 |
| Socket | B7G | B9A |
| Base pins | 7 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | Not recorded | 0.6 A |
Where M8204 can be used as the replacement
In these recorded relationships, M8204 is the replacement tube. The listed original tubes are not automatically suitable as replacements for M8204.
Specialized - Thyratron
The database records M8204 as a possible replacement for2D21.
No special restrictions are recorded for this substitution.
| Specification | M8204 replacement | Original tube |
|---|---|---|
| Tube type | Specialized - Thyratron | Specialized - Thyratron |
| Construction | Thyratron | Thyratron |
| Base | Not recorded | B7G |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | Not recorded | 0.6 A |
Specialized - Thyratron
The database records M8204 as a possible replacement for5727.
No special restrictions are recorded for this substitution.
| Specification | M8204 replacement | Original tube |
|---|---|---|
| Tube type | Specialized - Thyratron | Specialized - Thyratron |
| Construction | Thyratron | Thyratron |
| Base | Not recorded | E7-1 |
| Socket | B7G | B9A |
| Base pins | 7 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | Not recorded | 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 M8204 specifications →