This 1 to 40 MHz amplifier is from a 1969 Motorola documentation. The components are of the time but admit modern equivalents.
This circuit was found in a 1964 Electronic Design. The circuit makes use of transistors of the...
) This circuit was found in a 80’s Popular Electronics. It issues a warning signal with the signal...
This simple circuit uses a 200 uA microammeter of the type found as VU, being able to measure...