5642: Difference between revisions
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The 5642 is a directly-heated high-voltage rectifier tube. It is used in the CRT cathode and | The 5642 is a directly-heated high-voltage rectifier tube. | ||
post-deflection acceleration supplies in many Tektronix scopes. In typical | |||
CRT circuits, the filament/cathode leads of each 5642 | * filament volatage = 1.25V | ||
on the HV transformer. | * filament current = 200mA | ||
* peak inverse volrage = 10kV | |||
* peak plate current = 250uA | |||
It is used in the CRT cathode and | |||
post-deflection acceleration supplies in many Tektronix scopes. | |||
In typical CRT circuits, | |||
the filament/cathode leads of each 5642 have their own secondary winding | |||
on the HV transformer. | |||
[http://w140.com/5642.pdf 5642 datasheet] | [http://w140.com/5642.pdf 5642 datasheet] | ||
Revision as of 14:14, 25 May 2014
The 5642 is a directly-heated high-voltage rectifier tube.
- filament volatage = 1.25V
- filament current = 200mA
- peak inverse volrage = 10kV
- peak plate current = 250uA
It is used in the CRT cathode and post-deflection acceleration supplies in many Tektronix scopes. In typical CRT circuits, the filament/cathode leads of each 5642 have their own secondary winding on the HV transformer.