This game was found in an old Popular Electronics. The unijunction transistor can be 2N2646. The supply can be done with voltages from 6 to 12 V.
In this game, whoever tightens the sensors, which are metal bars or spent batteries, makes the...
This two input simple mixer uses two transistor and can b e upgraded to more inputs. Input...
This circuit is from a 1987 American publication called Electronics Handbook. The circuit can be...