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502ASensibly equivalent¶ to:GL502A
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The RCA 502A is a gas filled tetrode thyratron. It is designated for service as a relay or as a a grid controlled rectifier. The peak current at one Amp is ten times the average current rating, as much as for a normal rectifier.The best date we have so far is from the revised data-sheet.
The envelope paint is gloss and the print is orange. The thin metal tube envelope is 25 mm in diameter, and excluding the IO base pins is 51 mm tall.Reference: Data-sheet. Type 502A was first introduced in 1948. See also 1948 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |  nc | h | a | nc | g1 | g2 | h | k,m |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | 
| 6.3 | 0.6 |
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Updated January 06, 2022.
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