We found this circuit in a 1980s Motorola documentation. The circuit makes use of common operating and the voltage depends on the used type. The components are for a frequency of 500 Hz.
With this circuit, from a 1991 publication, it is possible to regulate the output of a symmetric source...
Found in old documentation, this circuit is tuned to pass signals below 245 Hz with a level of...
Found in an Electronic Design from the 90s, this circuit produces a signal whose frequency is...