Murphy 659X: No Raster

You are here:
< Back

Investigations in the line output circuit revealed that there was a weak “r.f.” spark at the anode of the U26 e.h.t. rectifier.With the top caps removed from the line output and boost rectifier valves, the boost reservoir was tested for short-circuit, with negative result.

It transpired eventually that this capacitor had gone open-circuit, but at first no test was made to check this.It is very common to find the boost capacitor short but rare to be open.

Previous MURPHY 410
Next MURPHY V114
0 0 votes
Article Rating
Subscribe
Notify of
guest

This site uses Akismet to reduce spam. Learn how your comment data is processed.

0 Comments
Inline Feedbacks
View all comments
Table of Contents
0
Would love your thoughts, please comment.x
()
x