This simple circuit consists of a blinker for a very low consumption neon lamp, found in a 1982 documentation. The circuit can be powered by 110 V for 1N4004 diodes or 220 V for 1N4007 diodes.
We found this antenna amplifier or Booster circuit in an Electronics Now from the 90s. The circuit...
We found this circuit in the Linear Applications Handbook of the 1994 National Semiconductor. The...
This circuit is from a 1976 Motorola power semiconductor manual. In it we have the optical...