This circuit is from an Electronics Now from the 90s. The circuit uses a power integrated circuit from the time that must be equipped with a heatsink. The power supply is 18 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...