This circuit was obtained in an American documentation from the 80's. The transistors can be equivalent to those indicated and the crystal can reach a few tens of megahertz.
The aim of this circuit is the protection of a 2N3055 transistor, avoiding the overheat. The...
This circuit was found in an American magazine 73 for radio amateurs of the 80s. It is an...
June 2016 - Mouser already have to deliver the new analog-to-digital converters SAR ADSxx53 of...