This circuit was fond in an old publication of the years 1950. The transistors are germanium types and equalization is RIAA.
Using a 4018 IC and one gate of the 4081 it is possible to divide the frequency of digital signals by...
This circuit uses a transistor as a sensor and operates in the range of 0 to 50º C. We found it in...
This circuit was suggested by Texas Instruments in a manual of operational amplifiers. Other...