The circuit shown in the figure below is from the 1993 Linear Technology Applications. The operational ones used are uncommon and the use of equivalents can be analyzed.
When the sensor, an ordinary photo-transistor, receives light, the relay closes its contacts. The...
This simple musical instrument was obtained from a 1967 magazine. If the original transistors are...
August 2017 - MCUs of the new Infineon MC1400 series for industrial use can now be purchased from...