This circuit is used in magnetic tape recorders, having been found in documentation in the 1960s. The circuit uses Japanese transistors, and the critical components are transformers.
The integrated circuit used in this 70's application is uncommon nowadays but knowing that it...
The circuit shown in figure 1 consists of a fixed buck regulator using the MIC23021 integrated circuit...
The circuit presented was found in a 1964 documentation. The relay can be 6 or 12 V depending on...