This sequential beacon was found in an 80's Radio Electronics. The circuit can be designed using modern equivalent components. Triacs shall be fitted with heat sinks.
This mixer uses only four passive component and can be used with high impedance sources. The input and...
This circuit was found in a Popular Electronics of the 90s. The resistor R4 determines the load...
This circuit was found in an American 1980s documentation. The transistors admit equivalents and the...