This circuit is from a Popular Electronics from the 90s, consisting of a repeater relay for remote control of TV, which today can be done by Wi-Fi or other simpler resources.
We found this oscillator in the 1994 National Semiconductor Handbook of Linear Applications. The...
This trimmer or reaper amplifier cuts the signal peaks at a voltage determined by the zener...
Found on Popular Electronics from 1970, this circuit fires a xenon lamp producing a C1-dependent...