Exposure 3510/5010 DAC Plug-In Board/Card Rega are a strobe disc and

are a strobe disc and Zapper for fine speed adjustment)

but uses many advancements that first saw the light of day in the top of the range Rega turntables

featuring a copper phase plug and no dust cap

For 78rpm you swap to a different belt which uses its own ridge on the motor pulley (you will also need to change to a 78rpm compatible stylus

Exposure 3510/5010 DAC Plug-In Board/Card Rega are a strobe disc andExposure DAC board card that can be fitted to : 3010S2D Integrated Amplifier 3010S2D Pre Amplifier 3510 Integrated Amplifier 3510 Pre Amplifier 5010 Pre Amplifier Features: All discrete transistor output stage High quality parts used throughout Tight tolerance parts used for analogue filtering Low noise audio stage power supply regulators Technical Specifications: 2V RMS output for full scale input THD @ 1KHz < 0. 005% One Coax (BNC) input sample rate