Predicta Predicament

[Down Under]

Hi guys,

I know this is an old thread, but it may help someone.

I found my issue. Just a reminder, B+ was a bit low at around 235V, the width of the
picture was very reduced with a bit of foldover on the RHS and with severe blooming and associated loss of high voltage. When I adjusted the horiz hold, I could get a better HV with brighter picture, but the frequency was way off; too high.

Well, it turns out that I'm an idiot. When rechecking C45 (SAMs, 0.033 uF), it turned out that I had put in a 0.0033 uF. I only just discovered my mistake and after fitting the correct value, B+ is around 255V, same as my working Tandem. HV is where it should be, judging by no blooming, a bright picture, and a decent arc off the rectifier plate lead.

Very happy now!

Now to recoat the flyback properly.

Cheers,

Adam