Found in 90's Electronic Engineering this circuit can be used to measure phase angles between two signals from 0 to 180 degrees. The components used admit modern equivalents.
Found in a 90's EDN, this circuit changes the phase of a signal from 50 to 60 Hz in 120 degrees. The...
The LM320 is a negative voltage regulator up to 15 V with maximum current of 1 A. In this circuit we...
This circuit was found in a 1967 Philips documentation. The circuit fires when light stops hitting the...