This two transistor AM radio circuit is also called “mini-radio”. It uses only 2 transistors and few passive components which makes is very easy to be constructed. Although the circuit is very simple, ...

Process devices operate when an input level, such as voltage, reaches the required value for the device to operate. The transistor is on, when the input voltage is greater than or equal to \(0.7 V\).

Recently my colleague Paul Rako contacted me to let me know about a newly published, McGraw Hill book entitled, “Build your own transistor radios” by Ronald Quan. One of the most successful blog posts ...