This game for 4 competitors was found in a Popular Electronics from the 80's. The circuit has CMOS technology and can be powered by voltages from 6 to 12 V.
This charger sources currents in three ranges: 10 mA, 25 mA and 50 mA; Current is sellected...
The LM11 is a precision operational amplifier from National Semiconductor. The circuit was found in...
This amplifier uses germanium transistors of the time. The circuit is from a documentation from...