Pin 5, V3 again. Yeah, that's why I posted it. It looked a little odd.
I've checked all the resistors in that section and all are decently within acceptable range. All the caps in the H area are all ceramics, except for one C124, which is an Elmenco wax/ceramic. Although cosmetically it looks fine, it's in the crosshairs next time I crack this set open. This one is easy to access. The other White ceramic in the boost, a .1 1KV is only accessible by pulling the chassis, which I'm understandably not enthused about.
I have checked out DRH's post. I referenced it before, for VDR issue in an older metal cab Zenith. The part numbers in this unit, unfortunately were not covered by his cross reference. Although I did try swapping with what I had on hand, it only made things worse. I have no specs for the ones in this set, other than black and orange bands.
Quote:
Originally Posted by zeno
Yes Mr Squirrel has some good points as always.
First wave form looks good, assume its at hoz osc.
On your post #11 where was that taken ? . It looks kinda shabby.
So probably concentrate on the HO G-1 drive for now.
BTW drh4683 did a great job on the older chassii VDR. He found
modern subs for them. Trouble was even the newest sealed OEM
VDR's were going bad in the pkg. Do some searching for the
post. It was within the last 2 yrs IIRC.
Zeno
|
07-01-2022, 10:19 PM
Threaded Mode