Quote:
Originally Posted by vortalexfan
When I moved the ion trap the screen would get brighter. The bypass cap for the 6CM7 tube was replaced with a 47 MFD cap with a 39 MFD cap in parallel to make 78 MFD, both caps are rated for over 100v.
The weird thing is that I actually had a really good picture on the TV going through the Tuner using my NES as a good stable video source and when I went to switch over to a converter box the picture went haywire and I wasn't able to get the tuner to lock in on the converter box signal, but yet it locked in rock solid with the NES.
What's up with that?
|
78uf may possibility be too much. That tube needs to be biased "just right" in order to get vertical linearity in it's sweet spot, so that it interfaces well with the height and linearity controls. I have a 47uf in parallel with 22uf on mine which seems OK. Has something to do with were the tube amplifies relative to it's characteristics load line.
Lot's of folks have reported very strange things a happening with converter box's. One thing we can be sure of , they were never designed for compatibility with older than dirt TV's.
