View Single Post
  #62  
Old 10-30-2015, 01:35 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
 
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 15,445
Quote:
Originally Posted by old_coot88 View Post
Since that boost diode's been replaced with silicons, be sure to monitor it (them) for overheating.
The original part being selenium, it could handle the fast retrace ("fly-back") spike whereas silicons lagged in fast-switching ability.

It might be worth asking somebody like Mouser or Digikey if they've got Schottky diodes in high enuff voltage rating. Or you could series 'em.
Honestly, my Silvertone CTC-15 clone had to have it's Boost rect changed 5 years ago....Back then I used the same diodes to replace it, and those have been in weekly to daily use ever since without issue.....If they fail in the first 2 years of service I will be shocked.
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote