420: Difference between revisions

18 bytes added ,  11 December 2017
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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>
File:Tek 420 hvps.png|Entry in 1950 Catalog.
Tek 420 hvps.png|Entry in 1950 Catalog.
File:Tek_517_hvps2.png|Schematic of 420 in the Type 517
Tek_517_hvps2.png|Schematic of 420 in the Type 517
Image:420A_1.JPG| opening power supply  type 420A, five high voltage rectifier
420A_1.JPG| opening power supply  type 420A, five high voltage rectifier
Image:420A_2.JPG| opening power supply  type 420A, many capacitor
420A_2.JPG| opening power supply  type 420A, many capacitor
</gallery>
</gallery>


[[Category:Power supplies]]
[[Category:Power supplies]]