This 6-transistor commercial radio with 6 V supply was found in a Japanese publication from the 1960s. The circuit is a commercial superheterodyne with 150mW to 200mW of battery powered output.
Found in a 90s Linear Technology document, this circuit uses components from that time. The...
One pulse in the output is produce at each 5 pulses applied to the input. The circuit uses CMOS...
This control for 12 V drills was found in a 90s Elektor. The components are current, and Q1 can be...