In this interesting circuit from Popular Electronics, the output voltage is the square root of the input voltage. Equivalent operational amplifiers can be tried out.
This circuit is from a Motorola manual generating signals up to 200 kHz. The publication is from...
This high power circuit was found in a Popular Electronics of the 90s. The circuit makes use of...
This circuit changes the wave shape of a square signal according the values of C1 and R1. Other...