Bliss "universal" (.7mil) Conical diamond needle for any legacy Pickering XV-15 series needle including:
DCF = Dynamic Coupling Factor; "an index [Pickering used] of maximum stylus performance when the cartridge is related to a particular type of playback equipment." (higher = better)
Early Models:
Pickering D100 / DCF 100; 4507 AC; (Red dot, 3 - 7 grams | .7mil)
Pickering D140 / DCF 140; 4500 ACE (Red ellipse, 625DJ; 3 - 5 grams | .5 x .7mil)
Pickering D150 / DCF 150; 4507 AT; (Silver Dot, 1 - 5 grams | .7mil)
Pickering D200 / DCF 200; 4500 ATE; (Silver Ellipse, 1 - 5 grams | .4 x .7mil)
Pickering D350 / DCF 350; 4500 AM; (Gold Dot, 0.75 - 3 grams | .7mil)
Pickering D400 / DCF 400; 4500 AME; (Gold Ellipse, 0.75 - 1.5 grams | .4 x .7mil)
Late Models:
Pickering D625 / DCF 625 (Gold Print D625, 0.75 - 1.5 grams | .3 x .7mil)
Pickering D750 / DCF 750 (Gold Ellipse, 0.5 - 1.5 grams | .3 x .7mil)
Pickering D757 S / DCF 750 (Gold Ellipse, 0.75 - 1.5 grams | Stereohedron)
Pickering D1200 E / DCF 1200 (Gold Ellipse, 0.5 - 1.25 grams | .2 x .7mil)
Pickering D1800 S / DCF 1800 (Gold Ellipse, 0.75 - 1.5 grams | Stereohedron)
Any above needle may be found in any legacy Pickering XV-15 "DCF" series cartridge including:
Early Models:
Pickering XV-15/100 Cartridge; XV-15 AC (AC = Automatic Changers)
Pickering XV-15/140e Cartridge; XV-15 ACE (ACE = Automatic Changers; Elliptical Stylus)
Pickering XV-15/150 Cartridge; XV-15 AT (AT = Automatic Turntables)
Pickering XV-15/200e Cartridge; XV-15 ATE (ATE = Automatic Turntables; Elliptical Stylus)
Pickering XV-15/350 Cartridge; XV-15 AM (AM = Manual Turntables; Low Tracking Automatics)
Pickering XV-15/400e Cartridge; XV-15 AME (AM = Manual Turntables; Low Tracking Automatics; Elliptical Stylus)
Late Models:
Pickering XV-15/625 E Cartridge
Pickering XV-15/750 E Cartridge
Pickering XV-15/757 S Cartridge
Pickering XV-15/1200 E Cartridge (Gold body)
Pickering XV-15/1800 S Cartridge (Gold body)