This oscillator was found in a 70s RCA linear circuit manual. The oscillator makes use of an integrated device from the time, difficult to find today.
The accuracy of this multimeter depends on the accuracy of the used resistors. The circuit uses a...
This circuit was found in a Philips documentation from 1967. The circuit uses components from the...
This circuit was found in an 80's Radio Electronics. The circuit multiplies the frequency of a low...