This adjustable frequency circuit was found in December 1986, Radio Electronics magazine. The base frequency is given by C1 and the power supply must be 5 V.
The configuration of this function generator is not unusual. Only the adopted symbology is...
This filter operates in the “opposite” way to the previous one (CIR8814), cutting all signals...
The same basic audio oscillator as the CIR15855E can be modulated automatically by a relaxation...