Predicta Princess - a few questions.

[maxhifi]

Okay cool I will leave them out.

[Don Lindsly]

Those components were deleted "to improve sound sensitivity and facilitate production" per Philco engineering change bulletin.

[DaveWM]

something you may want to check, the plate load resistor on the sync separator. Cant really test it in circuit as it is in series with some resistors in one of the networks.

In circuit IIRC it was 25k, but that was with the board all hooked up.


I have had a couple predictas now that had very soft sync, both time it was that resistor open or very high.

You can of course find this as well with simple voltage checks but since you have already pulled the chassis, you may as well replace that one since its covered by the shield. That is assuming there was a sync issue.