I finished a total recap and replace many out of spec resistors.
I added a 220 ohm resistor to one leg of the focus pot to compensate for the shorted windings in the damaged area.
The linearity is pretty good.
The horizontal is off a little (squares on the left are wider than on the right), but the linearity adjustment coil doesn't have much of an effect.
Here's a multi-burst bandwidth test at 0.5, 1.5, 2.0, 2.5, 3.58 and 4.2 MHz.
Curious that the middle bars (2.0 MHz) are less distinct. I suspect the IF has a pronounced double hump response.
Quote:
Originally Posted by mbates14
youtube vids?
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part 1
part 2
Still working on part 3. It will cover alignment.