Tape recorder

摘要

A tape recorder, wherein a plurality of magnets are mounted on the peripheral surface of a rotary disc supported on a magnetic tape takeup (feed) reel in order to measure the travelling distance of a magnetic tape; and when said magnets are brought to rest in such position as causes a lead switch to be operated at the cutoff of a main power source, then a transistor connected to one end of the lead switch is rendered nonconducting by its base resistor, thereby interrupting the input circuit of a counter-display section.