This circuit was found in the 1967 RCA SCR manual. The circuit generates approximately 300 V at a frequency of 1 kHz. The components are from the era.
We found this configuration of band rejector filter or band rejector with operational 741 in a...
This oscillator can use any CMOS inverter. The circuit is crystal controlled and was found in the...
This circuit was found in a 1967 US documentation. It shows how to build a gain control by digital...