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.
Found in Linear Technology documentation from the 1980s, this circuit has an accuracy of 0.01%....
This amplifier circuit for listening was found in a book by Hugo Gernsback from 1960. The...
This circuit is from a current regulator up to 1 A, ie a constant current source. The LM320...