The figure shows how to implement an amplifier with gain 10 using the operational amplifier LM41. The circuit is from a publication from May 1989.
This sensor circuit for currents of the order of nanoamperes was found in an American...
This circuit was obtained from a 1964 magazine and has some interesting features such as the input...
Suggested by a 90’s Radio Electronics, this circuit automatically activates the recording switch of an...