View Single Post
Old 24th Oct 2017, 11:13 pm   #12
Clydeuk
Hexode
 
Join Date: Mar 2012
Location: Liverpool, Merseyside, UK.
Posts: 453
Default Re: 1981 Philips 20CT3322/61Z. To plug it in or not?

If it's the A51 570X CRT (I think that was the one anyway) you will be very lucky if it's any good. The chassis itself was very reliable and I think it is very likely the CRT might be the reason it was thrown out.

Check the CRT base, there are 2 coils (chokes?) in series with the feed to the heaters. Have they been bridged out? This was a common way of squeezing a bit more life out of a tired CRT.

The similar 110 degree K30 sets were much better and the 30AX CRT's lasted a lot longer. It's just down to a poor CRT. There was a Decca set that used the same CRT, with the same issues.
Clydeuk is offline