This is the traditional voltage follower configuration with the 741 operational amplifier. The circuit is from 1976 documentation and the power supply must be symmetrical from 6 to 15 V.
TQP92xx series power amplifiers for frequencies in the typical range of 1,805 -2,200 MHz can be...
This is one of the possible timer configurations with the 555. We found it in October 1986 Radio...
This power supply for those who want to feed and recover 5 ¼ floppy disks was found in the...