PURPOSE: To allow a frequency regulating plate to store correctly a station tuning point adjusted by a manual adjusting mechanism by keeping lateral movement of a lateral moving cam plate to a restricting state even if a pushbutton is depressed while the frequency regulating plate is not restricted.

CONSTITUTION: Memory pieces 6a, 6b of the frequency regulating plate 7 in free turning state are butted respectively with slope ridges 19a, 19b of corresponding cam holes 20a, 20b attended with the forward movement of a channel selection member B. Then the frequency regulating plate 7 is turned corresponding to the amount of movement corresponding to lateral cam plates 14a, 14b and the forward movement of the frequency regulating plate 7 is blocked because the lateral cam plates 14a, 14b are connected so as to be moved relatively. In depressing strongly a pushbutton 10 from this state, the 2nd mechanism body 4 is progressed to the 1st mechanism body 3. Then an operating member 9 is broken between the 1st mechanism body 3 and a suppressing piece 8 so as to tilt the suppressing piece 8, and then the frequency regulating board 7 is suppressed so as to memorize the station turning point adjusted by the manual adjusting mechanism.