Found in an Electronic Design from the 90s, this circuit uses a component of the time, difficult to obtain today.
This circuit generates circles on the screen of an oscilloscope. The circuit is from old...
To excite a higher power load, such as a 40mA lamp, we have the circuit in the figure. For this...
This circuit, from a 1998 documentation, allows to obtain more power for the radios and amplifiers of...