Dual Polarity Power Supply +/- 15V based Transistors

Dual Polarity Power Supply +/- 15V based Transistors
This Dual supply circuit is suitable for installation of power analog (audio or measurement), it provides a bipolar voltage  with voltage source  between 20 and 50 V (in audio power amp, for example). Regulated output voltage is 15V, but can be adjusted from + /-12V or + /-18V by simply changing two components. The maximum output current must not exceed 100 mA each branch. (more…)

Low Power Bipolar Stabilizer

Low Power Bipolar Stabilizer
The stabilizer is made ​​on the integrated circuit KR142EN6. IC is a bipolar voltage regulator with an output voltage of + / -15 V. Maximum load current is 200 mA. Enough to supply a pre-amplifier or the early stages of the power amplifier. (more…)