Quote:
|
Originally Posted by roundscreen
Eckhard
How did you remove the stuck core and When you adjusted the current to 180 ma what did it do to the picture? I was suprised to hear that the coil was not even getting warm.
|
I didn't remove the stuck core but inserted an additional core. I found that it works while trying to turn the stuck core with a screwdriver, every time when I inserted the screwdriver into the coil the horizontal current decreased. But the stuck core remained in its fixed position.
I took the second core from a coil of the flyback unit of a newer solid state tv set. The picture width didn't change but it was clear visible that the horizontal linearity changed. I have to adjust the convergence tonight again.
Beside the core into the coil, I added the horizontal drive regulation circuit of the ctc-7 schematics. With it I can adjust the overall horizontal drive and the high voltage currents at the 6BK4.
BTW: the 21AXP22A has a really strong emission on all three guns. Before three weeks Steven Kissinger visited me, together with Ingo Kubbe. Ingo has a RCA crt meter and we measured the crt. All three guns have 100 percent emission, even the red gun.