Phonograph needle Pfanstiehl 4110-DET, 4111-DET, used in: ADC K6E, K7E, K8E, ADC QLM30/III, ADC QLM32/MK III, QLM34/MKIII, QLM36/II, QLM36/III, Q36, 30 and many more, and all Mark III cartridges, Radio Shack RK50E. Replaces: ADC RS6E, RS7E, RS8E, ADC RSQ30, ADC RSQ31, ADC RSQ32, RSQ33, ADC RSQ36, ADC RQLM30, ADC RQLM36, RK5E, ADC RP32, ADC RSQ34. Pfanstiehl 4110-DET. Tip: .4 x .7 elliptical diamond. Tracking force: 1-1/2 - 3 grams. Speeds: 33 & 45 RPM. New .Search my store titles AND descriptions. Enter your needle no., cartridge no., or brand name. E-mail for further help.IF YOU ARE PURCHASING A NEEDLE Model numbers are provided in manufacturers references for the cartridge they installed in those models. If the cartridge has been changed by a dealer or user, this needle will not be correct for the model numbers listed, as it is the cartridge that determines what needle is needed. Be sure it looks like your old needle.