420

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The Tektronix 420 is a high-voltage power supply used in the Type 507 and Type 517 scope. It uses 1X2 tubes as HV rectifiers.

  • Entry in 1950 Catalog

    Entry in 1950 Catalog

  • Schematic of 420 in the Type 517

    Schematic of 420 in the Type 517

  • opening power supply type 420A, five 1X2 high voltage rectifier tubes

    opening power supply type 420A, five 1X2 high voltage rectifier tubes

  • opening power supply type 420A, many capacitors

    opening power supply type 420A, many capacitors


Some Parts Used in the 420

Part Part Number(s) Class Description Used in
1X2 154-0005-00 Vacuum Tube (Diode) high-voltage rectifier 420 • 507 • 565
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