Quote:
Originally Posted by old_tv_nut
As you are getting a good blanking pulse, my bet is that the designers expected the variation in the range you are seeing and determined that the circuit would still work properly with this variation.
Edit: if you have extra tubes, it might be educational to plug a few in and see if the DC changes but the pulse is still OK. If you don't have extras, you could still experiment by exchanging V21 and V20.
|
Tried that, did not hep much, I do have another one ordered.
Also, it does not help much that I have things bypassed and have video fed in, so that MAY be part of it, it is weird, some times the retrace lines are seen, other times they are not, not sure why it is doing this.