This transistorized stage has a high gain, being adjusted by VR1. The circuit can be used as an excellent audio preamp. We found this circuit in a 1996 English publication.
This circuit is part of a synthesizer that was published in parts in several issues of Radio...
This symmetrical or dual source without regulation is indicated for the feeding of experimental projects...
Integrated LM108 and LM101A are used in this fast adder with low input current, figure. The...