- Unique pressure die-cast magnesium shell detachable and interchangeable without disturbing cartridge or wiring.
- Design of headshell clamping ensures a rigid junction with the tone-arm.
- Stainless steel cross shaft, ground and thread ground. Carried in massive yoke on 10mm precision ball races. Axes at record mean level to minimise warp-wow.
- Unique assembly gives high rigidity and allows bearings to be critically adjusted before the tone-arm is fitted.
- Stainless steel vertical shaft, ground and thread ground, with integral 16mm diameter flange to couple shaft and yoke.
- 23mm diameter steel pillar, heat treated, ground and honed, carries two 17mm precision ball races, widely spaced to resist tilt.
Model 309 Dimensions | |
A – Distance from pivot to stylus | 232.2mm |
B – Distance from pivot to turntable centre | 213.4mm |
C – Cartridge fixing centres | 12.70mm |
D – Offset angle | 23.2° |
E – Linear offset | 91.54mm |
F – Overhang | 17mm |
G – Height above mounting surface | max. 87.90mm min. 56.40mm |
H – Height of record surface above mounting surface | max. 55.90mm min. 24.40mm |
K – Radial clearance for balance weight | 73.0mm |