This circuit was found in an American publication in 1966. The circuit uses a general-purpose FET that admits an equivalent. The instrument is a 250 uA full-scale microammeter.
This non-inverting AC amplifier was found on a Popular Electronics. The setting applies to any...
Using a PLL this circuit can generate signals of up to 500 kHz which is basically determined by the...
Found in a 1968 Electronics World, this circuit uses operational amplifiers from that time. |...