We found this circuit in a 1966 US documentation. It simulates a variable capacitor that can vary capacitance from 1,000 to 1. Transistors are general purpose types.
ST Microelectronics STSPIN32F060x Three Phase 600V Controller This STMicroelectronics component...
Pink noise is used in musical instruments, testing of telecommunications equipment and other...
This circuit is from a 2004 documentation serving for signals from 1 MHz to 160 MHz. The antenna is...