Her er en liste over serienumre og modifikationer fra Wikipedia. (
https://en.wikipedia.org/wiki/Linn_Sondek_LP12)
Ifølge den er den tilbudte LP12 fra imellem 1979 og 1981.
Changes [to the LP12] are elaborated below. related serial numbers in square brackets
1972, LP12 turntable introduced.
1974, Main bearing liner changed. Sub-chassis strengthened by addition of strap, spot welded in place. Motor control circuit changed from terminal strip to small PCB. Mains switch changed from two buttons to single with mains neon. [s/n 2,000]
1978, Top plate modified adding two holes for 6 x 0.5 self tappers into wood block. [23,000]
1979, Lid prop removed, hinges changed to spring loading. [27,000]
1981, February. Nirvana mechanical components. [32,826]
1982, May. Valhalla crystal-driven electronic power supply made standard. [38,794]
1984, New clear lid. [~52,600]
1984, Enlarged plinth corner bracing. [53,000]
1984, June. Sub-chassis strengthening bar epoxy glued instead of spot welded. [54,101]
1985, August. Cap head screws on bearing housing. [60,383]
1985, September. Diode modification to Valhalla board [61,090]
1985, December. Strengthening blocks on corners of plinth.
1986, Suspension springs improved.
1987, March. New bearing housing, New Formica and MDF armboard. [69,161]
1987, April. New springs. [69,591]
1987, Bearing improved with better lining material and tighter tolerances. Change to black oil. Suspension springs ground to improved tolerance. Arm board composition improved. [70,000]
1989, Motor thrust pad changed. Valhalla surge guard modification. PCB mains lead (UK). [79,700]
1989, New MDF armboard, laminated top and bottom. [79,160]
1989, Harder suspension grommets fitted. [81,000]
1990, External Lingo power supply available as add-on.
1991, motor thrust pad cap added to Lingo models. [87,047]
1991, Valhalla board prototype with 45RPM (never went into production, codename "Wakonda") [87,047]
1991, motor thrust pad cap added to Valhalla models. [87,206]
1991, Introduction of LP12 Basik, a stripped-down version of the turntable [87,672]
1991, Solid base board replaces hardboard. [87,672]
1991, Trampolin base board with isolating feet available as an option [87,672].
1992, Improved top plate fixing. [88,950]
1993, Cirkus upgrade (larger and better machined inner platter and new bearing, new springs, armboard, belt) fitted as standard. [90,582]
1997, a limited edition commemorative LP12 was created to mark the 25th anniversary of the LP12. Amongst other features, it bears a plaque etched with the signature of Linn's founder Ivor Tiefenbrun.
2001, New motor used (first new motor since original 1972).
2002, Maple plinth introduced adding to existing black, walnut, rosewood and afromosia options.
2013, Full-spec limited-edition (40 in all) 40th anniversary LP12, plinth made from oak casks from Highland Park distillery, priced at £25,000.[21]
2018, Lingo 4 power supply introduced with dual-speed AC motor.
2020, March. Karousel single-point bearing introduced and Cirkus bearing discontinued. Custom painted plinth option now available with all new LP12 turntables.
Oracle Delphi Mk 5.5, Mørch DP-8, PT: Ortofon SPU Royal N, NLE22 med batteriforsyninger, Lyngdorf CD2, Roon Rock, Lyngdorf TDAI 3400, Sansui PS 112C HT kabler, Martin Logan Vantage....og en frygtelig masse andet.