Radio tuning arrangement
AssigneeGrundig E. M. V. Elektro-Mechanische Versuchsanstalt Max Grundig
InventorManfred Flugge
Life of this patent
Estimating the term…
Abstract
A radio tuning arrangement is provided wherein a drive cable for rotating a uning capacitor drum in response to rotation of a tuning knob also serves to provide current to a lamp that moves with an indicator in response to rotation of the knob. The cable includes a pair of conductors that extend longitudinally off the drum to terminal posts through a clamp thereby defining a torsion section of the cable. The conductors also extend circumferentially off the drum to the indicator lamp from opposite sides of a closed path.
Claims5
A radio tuner arrangement for use with a radio of the type wherein tuning is accomplished by the rotation of a knob which, in turn, rotates a variable condenser drum via a cable, said arrangement comprising:
- a tuning scale;
- an indicator disposed for movement along said scale;
- a lamp mounted to said indicator for movement therewith;
- a drive cable extending in a closed path between said drum, knob and indicator, said drive cable having sections thereof wound about said drum and knob, said drive cable further including a pair of insulated conductors each having a first end extending off said drum longitudinally and affixed to a terminal post and an opposite end connected to said lamp, said conductors extending off said drum circumferentially to said indicator from opposite sides of said path;
- said conductors being fixed to an end of said drum and extending beyond said drum end to clamp means positioned between said terminal post and drum whereby to define a torsion section in said cable between said drum end and said clamp means.
Dependencies are inferred from the claim text.