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 old fashioned transistor amplifier was found in a publication of the year 1958. Transformer...
This circuit is used in VHF and UHF superheterodyne receivers. The circuit is from the 1964 RCA...
This circuit was found in ancient American documentation. It makes use of the operational...