|
|
|
|
|
#1
03-02-2016, 01:04 PM
|
|||
|
|||
|
Well this morning I had a bit of time to start looking things over, and I did find that someone had eliminated resistor R96 (150K) which runs from the height control to ground with a wire - in other words going from the pot straight to ground. Replacing that resistor improved things slightly, however there's more work to do. I'm noting that when the set first comes on cold linearity is fairly decent but gets worse over some minutes as components warm up.
So firstly I'm going to go thru every resistor in the vertical section and replace anything more than 10% off. If that doesn't cure it, next I'll leet it warm up and go shoot each resistor with freeze spray to see if I can nail down any offenders and see where it goes from there............... -George- 
|
|
#2
03-02-2016, 01:41 PM
|
|||
|
|||
|
George, as I read this thread and didn't see if you had trying substituting tubes to shoot this trouble. If you have other tubes, you might try substituting whatever tubes are in the vertical oscillator and output section. Who knows? As you know, even if a tube tests good, the real "tube tester" is the circuit in which the tube is used.
Just a thought...
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Hybrid Mode
