This circuit, found in a 1958 magazine, is for reference only, since the components are not easy to find today. The transistors are germanium types and power supply is made by common cells.
This small shaver bender circuit makes it possible to use 220/240 V shavers on 110 V networks. The...
This receiver for the mid-wave band was found in a documentation from the 60's. The transistors are made...
This circuit, which uses only common transistors, was obtained from a 1988 publication, but can be...