View Single Post
  #43  
Old 07-01-2013, 06:13 PM
VintagePC's Avatar
VintagePC VintagePC is offline
Tube bug got me 05/2010
 
Join Date: May 2010
Posts: 535
IT'S ALIVE!

First powerup today, nothing caught fire so I wired up the cable and switched her on. BOOM, picture and sound first try! (Will edit post and provide a picture in a little while, camera is on charge right now)

A couple of things need doing though... and I'm not sure where to begin on some of these... Any advice?

1. B+ seems a little high. Schematic calls for 260V, I'm getting around 310 with the variac at 95%.

2. Am hearing some soft ticking coming from the HV area. I think it may be a bad HV cap connection as I lost HV after nudging it while the set was off. Will investigate further.

3. On switch-off, vertical and horizontal collapse as is expected... but there is a REALLY bright spot left over gradually expands and fades away over about 30 seconds or so... this seems far brighter and more concentrated than seems healthy, and something I do want to resolve asap before I run the set too much more for testing.

4. Vertical height is about 75% of the screen space with the control at maximum. Probably something to do with the bodge job on that control. Again, something I need to investigate after #3 is done.

Good start though, I can smell the victory coming!

As promised, here we go:


Last edited by VintagePC; 07-01-2013 at 06:56 PM.
Reply With Quote