The circuit transistors, found in a 1974 documentation, may be the BC548. The circuit is used in quadriphonic systems to combine signals.
The purpose of this game obtained in a 1998 documentation is to guess the number that the circuit...
This circuit is from the 2005 Linear Technology Application Manual. The circuit must be powered by 5...
This circuit generates excellent sinusoidal signals and has the frequency adjusted by VR1 which is...