This simple general-purpose transistor mixer was taken from an article in Electronics Now magazine in March 1994. You can choose a low-noise transistor such as the BC549.
This circuit is from a 1966 Motorola Field Effect Transistors Manual. The circuit makes use of...
We find this circuit measuring from 1 to 1000 mW of power from small transmitters and oscillators in...
This traditional stable configuration with the TTL 7400 integrated circuit was obtained in a...