Good news for analogue electronics enthusiasts: the Elektor Low-Noise Lab Power Supply Kit is now available in the Elektor Store. Designed for engineers, makers, and hobbyists who need exceptionally clean and stable supply voltages, this DIY bench power supply is an ideal addition to any electronics workbench.

Fully Analogue for Ultra-Low Noise

Unlike many modern laboratory power supplies, this design is fully analogue. There are no switching regulators or digital control circuits that could introduce unwanted noise into sensitive applications. Instead, the power supply combines a robust linear design with carefully engineered voltage regulation to deliver outstanding performance.

Dual Adjustable Outputs

The supply provides two independently adjustable outputs with a voltage range from 0 V to ±22 V and an adjustable current limit of up to 1 A per channel. Large analogue moving-coil meters continuously display the output voltage and current, giving the instrument a classic laboratory look while making it easy to monitor its operating status.

Designed for Precision Electronics

Developed by renowned analogue designer Ton Giesberts, the power supply has been optimised for low output noise, excellent stability, and straightforward construction. It is well suited for powering audio equipment, sensor circuits, operational amplifier designs, measurement instruments, RF projects, and other applications where clean power is essential.
 
Fig_36_Enclosure_top_view_Low_Noise_PSU_240386-1
The assembled Low Noise Power Supply kit. Note that the transformers and enclosure are not included in the kit.

Almost Complete Kit of Parts

The Kit of Parts contains all three professionally manufactured PCBs, the electronic components, and the four analogue panel meters needed to build the power supply. The mains transformers and enclosure are intentionally excluded, allowing you to source these locally according to your preferred mains voltage and enclosure design.

Build Your Own Professional Bench Supply

If you’ve been looking for a high-performance linear bench power supply that you can build yourself, now is the perfect opportunity. The Elektor Low-Noise Lab Power Supply Kit is available now in the Elektor Store.
Buy your kit today and build a professional-quality low-noise laboratory power supply for your electronics bench.

Also in Elektor Magazine

The project is presented as a two-part series in Elektor Magazine. The first instalment explains the design philosophy and circuit operation, while the second covers construction, calibration, and practical implementation. Together, they provide everything needed to understand, build, and customise the power supply.

And in Much Detail on Elektor Labs, of course :-)