Electronix Express DIY Dual Rail Variable DC Power Supply Soldering Kit (Intermediate Level)

Dual-Rail Variable DC Power Supply Kit

This intermediate-level soldering kit builds a dual-rail variable DC power supply suitable for powering a wide range of electronic circuits. It provides a single supply range of 3V to 32V or dual supplies from +/- 1.5V to +/- 16V. Two independent, high-gain internally frequency compensated op amps deliver positive and negative adjustable outputs. All component parts are included, though a soldering iron and solder are required separately.

Build Integration and Bench Utility

The assembled board measures 1.75 by 3 inches and features input and output terminal blocks plus an on/off switch for straightforward bench integration. It accepts an input DC voltage of +3V to +15V, converting this into the wider adjustable output ranges. Two adjustable potentiometers allow precise voltage setting for each rail. The kit frees up bench space by combining positive and negative variable supplies in one compact module.

Who This Suits and Who Should Look Elsewhere

This kit suits hobbyists and students with intermediate soldering experience who need a versatile, adjustable bench power supply for prototyping. Builders requiring higher current capacity, fixed-voltage outputs, or a ready-to-use unit without assembly should consider alternative solutions. Users without access to soldering equipment or those needing regulated outputs beyond the stated voltage ranges will not find this kit suitable.