Automatic idler-drive with spring-loaded sub-chassis (new in 1969) and the 12-inch platter family.
Sold-price reading for this model →Idler-drive turntable: the idler wheel, main bearing and motor mounting decide the price far more than cosmetics. Check the platter spins without rumble at both speeds and that the original plinth/arm are present (a missing SME arm or a non-original plinth can halve the value).
Marks that can be entered for this maker: Model / catalogue number, British capacitor code (Hunts, Mullard), Japanese capacitor code (Nichicon, Chemi-Con, ELNA), EIA component code, Chassis / platter stamp, Version & era marker.
Nothing predates 1969; components only push the date later.
Sold-listing reading: fair $112, good $250, excellent $549 USD · 17 sold listings · as of 2022-10 – 2023-01. Vintage Turntables eBay SOLD-price table (https://vintage-turntable.com/dual-values), 17 completed listings; fair/good/excellent are the observed minimum / median / maximum of those sold prices, not condition grades.
Evidence: Stereolife magazine — Dual history · Dual Reference — model tables · +1 more