< Back

I had the EY51 changed and both the PY81
and PL81 tested, but were found to be perfect. On switching on I get the line whistle, but it
fades away before the picture builds up. If I take the top cap off the PY81 I get a very good spark and brilliance, but the picture has no fine or horizontal hold. On replacing the cap of
PY81 the line transformer immediately goes dead. -G. Metcalf (Halifax).
It is very strange that the act of removing the
PY81 top cap can restore working of the line
timebase. Normally this would stop it as the circuit would then be broken. In view of this
you should suspect the .5 RE capacitor (C68) wired from the H.T. line to the boosted H.T. line.

Table of Contents

Leave a comment

I have read the privacy policy and accept
Read our privacy policy

This form collects your name, email and content so that we can keep track of the comments placed on the website. For more info check our privacy policy where you will get more info on where, how and why we store your data.

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