We found this small audio amplifier in the November 1999 issue of Electronics Now magazine. The integrated circuit used is not very common today.
We found this circuit in the 1974 Ferranti transistor manual. Transistors are from the time, being...
This temperature sensor circuit was found in an old American documentation. The components used...
This separator filter is from an old publication. The capacitor can have 10 to 47 uF of the...