This circuit uses a power component that is not common today, being recommended by Motorola in the 90's. Note the need for symmetrical power supply.
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...