The number one reason for this problem on the SL1100 is dirty speed controls. A shot of Deoxit (from the inside) and working the controls back and forth may be all it needs. Its been many years since I had my SL1100 but it may also have internal coarse speed adjustments as well- they too should be cleaned.
Technics SL1100A Repair/Restoration
Hi I have a Technics SL1100A turntable that I bought new back in the early '70's. It doesn't hold a steady speed any longer and I would like to have it restored and perhaps modified for improved performance. I live in Central Illinois and would like to find a place within driving distance (3-4 hours) but I'm willing to ship if necessary to obtain a quality rebuild. Thanks for any recommendations.
Larry
Larry