This circuit is from an 80's publication. It makes use of small 6 V x 50 mA incandescent lamps. The diodes can be general purpose or even 1N4002. The transformer is 6.3 V with 100 mA or more current.
This circuit is from a 1976 documentation. It makes use of isolated gate MOSFET which is already very...
This interesting circuit was obtained from a 90's EDN. What it does is generate negative voltages...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can...