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The '''Tektronix 420''' is a high-voltage power supply used in the [[517|Type 517]] scope. | The '''Tektronix 420''' is a high-voltage power supply used in the [[517|Type 517]] scope. | ||
It uses [[1X2]] tubes as HV rectifiers. | |||
<gallery> | <gallery> | ||
Tek 420 hvps.png|Entry in 1950 Catalog. | |||
Tek_517_hvps2.png|Schematic of 420 in the Type 517 | |||
420A_1.JPG| opening power supply type 420A, five high voltage rectifier | |||
420A_2.JPG| opening power supply type 420A, many capacitor | |||
</gallery> | </gallery> | ||
[[Category:Power supplies]] | [[Category:Power supplies]] | ||
