This 10.7 MHz sweep generator circuit is suitable for applications in the analysis of FM devices with the oscilloscope. The circuit is from American documentation from the 80s.
With this circuit it is possible to obtain an input resistance of 100Gohms for a multimeter, with...
This amplifier, to detect biological signals in implanted transmitters, uses transistors such as...
This application is not modern since few computers have parallel ports. But you can use this...