Alps Electric Co., Ltd.

Katsumi Takayanagi

Kozo Magami

Masao Kasajima

A resistor network having resistor elements disposed equally spaced apart in parallel relation to each other and one or more insulation substrates to which the resistor elements are rigidly mounted. The substrates and the elements are all enclosed in a resin seal in the form of a belt. The resin seal is provided with one or more holes extending through it for dissipating heat. The holes are rectangular in shape, and are disposed between every two of the resistor elements or in other regular manner.

Resistor network

A discharge terminal is provided integral with a resistor network unit to provide a discharge path for high voltage static electricity so that the high voltage spike does not alter the present values of resistance within the newtwork unit. The discharge terminal is located near a lead terminal to define a discharge gap between the lead terminal and the discharge terminal such that a static spike will not reach resistive elements in the resistor network.

Network resistor unit

A variable resistor adapted for use in tone control has an insulating substrate plate on which are formed two conductors. On the conductors are formed respective insulating films and, on the insulating films, a common resistance body. The ends of the conductors are positioned at an intermediate portion of the resistance body, so as to be short-circuited by a slide as the latter is brought to the intermediate portion of the resistance body.

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Miyagi, Japan

Katsumi Takayanagi