1X2

The 1X2 (European equivalent DY80) is a high-voltage rectifier tube with a B9A (Noval) miniature 9-pin base and an anode cap. It's maximum inverse voltage is 15 kV and the maximum forward current is 1 mA. The filament operates on 1.25 V, 200 mA.

The 1X2 tube is used in the 565, 507, and 517 (420 HV supply).

Links

• 1X2 Preliminary Datasheet (PDF)
• 1X2 @ radiomuseum.org

Pictures

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  A 1X2 tube in the RM565 HV Power Supply

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  Five 1X2 tubes in the Type 420 HV Power Supply (517 scope)