This interesting circuit for analog TV selects the first line of a frame. The circuit was found in a 1967 Electronic Design. A modern equivalent transistor can be tried.
Found in Popular Electronics from the 90s, this generator uses integrated circuits from that time....
This configuration can be applied to other operational amplifiers to increase the current...
September 2017 - Semtech's proximity sensors SX9310 with Specific Absorption Rate (SAR) can be...