This General Electric circuit is from the 80's. The PUTs used in this meter are not common components today.
Using the 555 this circuit was found in a Popular Electronics from the 90's. The circuit directly...
Found in a 1964 Electronic Design, this circuit protects the transistors of a complementary output stage. The...
Texas Instruments CC2564MODN Bluetooth Host Controller Interface (HCI) Module is a complete...