Checking hv

[Electronic M]

Originally Posted by timmy

This is the best picture I could get using a cell phone it is much clearer and crisp and it’s full screen. Cell phones seem to change a lot in a picture. I had to take the picture up close because the cell phone camera seems to cancel out light.

It looks like you have full deflection but poor focus. That probably isn't hard to fix. There's probably fixed resistors on both sides of the pot...just need to move a resistor from the side the wiper is touching to the side the wiper isn't touching to get more range.