RCA 21-D-7177 Horz Drive Issues

[Penthode]

Hi Kevin,

That is interesting. One extra thing: your set uses the synchroguide horizontal oscillator control. The optimum sync position is with the horizontal hold turned to the right just before it loses sync. If the range of your horizontal hold is not sufficient, then you can turn the hold control fully right and slightly adjust the horizontal frequency slightly so that it just loses sync and back up so it is in sync.

If you have to adjust the coil, make sure you adjust slightly the frequency coil end and not the horizontal waveform adjustment on the other end.

Can you still not see the black stripe on the left? If not then we will have to investigate the retrace time.

Terry