Weird distorted shapes

Hi all,

Doug and I have been working on building a reproduction 25" Amplifone using
a new deflection board design from an Australian designer (Dez). Overall
it's working extremely well, but we are seeing some odd distortion in
shapes. It's most apparent in circles, but can been seen in most shapes on
the screen where letters look a little warped and joins between vectors
overlap.

I know even 6100 deflection boards do have a little of this, but it seems
to be more apparent on our board.

Here's an extreme example of the death star on the star wars start game
menu...

https://www.dropbox.com/s/i1r76l4dif9vv2w/2014-03-02%2020.10.19.jpg

Doug mentioned that he thought it may be down to the tolerances of some of
the new components we are using on the deflection board. I wanted to throw
it out to the group to see if anyone has any ideas of where we might look
in the circuit to investigate this odd issue.

Joel

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Received on Mon Mar 3 14:20:08 2014