"TMI" wrote in message
oups.com...
Dear Art,

If it is the STK module, how could it "follow the tube/yoke" when he
swaps the connections with say the red? Splain please?.

Depends on whether the deflection yoke or the convergence yoke wires were
swapped. If the deflection yoke wires were swapped it would have the same
convergence drive.

Leonard