We found this circuit that can reach 50 MHz in the February 1997 Electronics Now magazine. The integrated circuits used are not very common today.
This circuit is from an old American publication, using transistors of the time and operating with a 48...
This high quality audio preamplifier uses three bipolar transistor and is powered from 24 V...
The circuit shown in the figure allows a pressure switch to be used to turn a load on and off in a...