"john" bravely wrote to "All" (26 Feb 04 18:06:21)
--- on the heady topic of " Advice on adjusting yoke on TV pic tube"

jo Reply-To: "john"
jo From: "john"

jo You want the Truth..
jo Leave it alone you will effect
jo the overall convergence.

The point of "convergence" is to correct for magnetic field anomalies
mainly arising in the deflection coil windings. The crt is by far a
more precise device. Rotating the yoke a couple of degrees therefore
should not affect convergence noticably because the magnetic offset
tabs still align correctly with the deflection coil defects. Obviously
any effects of the rotation should be observable at the edges of the
crt first, so a white line crosshatch would be a good pattern to
monitor the changes as the yoke is rotated. Try it on a junker and
see.

Asimov
******

.... High voltage can give a dangerously uncomfortable discharge.