I'd appreciate some thoughts on some electrical components for my enlarger, as I'm only qualified as dangerous in this area. Back in the late 60's I bought a new Omega E-6XL enlarger (5x7) that included the Power Lift and Power Focus accessories, all long discontinued. The Power Focus device has abruptly become so sluggish as to be useless. It was necessary for making large prints with the head raised very high - out of reach when focusing with a grain focuser. The location of the fault is not obvious, whether it's in the motor (not likely because of the sudden nature of the failure) or in the controller's buttons for coarse/fine adjustments. Then there's the gizmo (transformer?) mounted on the baseboard next to the column, inline between the controller and the motor, that may be the problem source. The enlarger is still in fine condition otherwise, so if there's no hope of salvaging the Power Focus device I'll just figure out a means of operating the manual focus knob, similar to that sold by KHB Photografix (at a price that exceeds today's market value of the enlarger).