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US 4,320,492 AGranted
Variable weight phonograph cartridge
AssigneeMicro-Acoustics Corporation
InventorsNorman H. Dieter, Jr., Sanford Drelinger
Life of this patent
Estimating the term…
Abstract
To provide for adjustment of stylus tracking force appropriate to a particular tone arm with which a phonograph cartridge may be used, the cartridge is provided with a compartment into which one or more weights may be placed. A damper is included for preventing vibration of the weights.
Claims11
In a phonograph cartridge having a transducer and an enclosure, the improvement comprising:
- the enclosure having a compartment for receiving a number of weights;
- and
- a grip in the compartment for retaining each weight.
Dependencies are inferred from the claim text.