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Archon Archon is offline
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Default Tektronix 2215A worth repair?

On 11/13/2011 8:13 PM, Geoff wrote:


Links below for pics taken with webcam. Mesh is visible.
I have played around with a magnet, can get trace to wobble
around as expected but it comes back to the same position once
magnet removed. This is true for the unshielded part behind
screen and the conical tube shield. I will try a degausser
once I find or make one

http://i251.photobucket.com/albums/g...01/focus_limit
_ccw1.jpg

http://i251.photobucket.com/albums/g...01/focus_limit
_cw1.jpg

http://i251.photobucket.com/albums/g...01/focus_limit
_ccw2.jpg

http://i251.photobucket.com/albums/g...e101/2215a.jpg

http://i251.photobucket.com/albums/g...e101/2215b.jpg


If the distortion stays constant with the traces as they move up the
screen its not the CRT

If the distortion is fixed in that area of the CRT then the CRT is
internally damaged.

Magnets and deguassers will not cure this.

IMO its a broken CRT

JC