PAM T908

< Back

Distortion of the sound low notes has occurred.
I have changed V14 (EF80), V15 (EF80), V16
(ECL80) and have renewed C85 (112mF) and C87
(200,4F). I have also substituted a good known
loudspeaker.-J. Somers (Portsmouth). A frequent cause of the symptoms you describe
is instability of the last sound i.f. stage, due to a
faulty screen grid decoupling capacitor. Check also
the bias decoupling electrolytic on the sound output valve.

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.