This Philips circuit of the 70's makes use of components of the time. The DZD40 is an uncommon integrated circuit today.
This circuit is recommended by Texas Instruments in the datasheet of the TL317, equivalent to...
The circuit shown in the figure consists of a low voltage dropout (LDO) regulator for 200 mA using...
This circuit of a Popular Electronics is intended to control a wiper. The circuit consists of a...