Variable power supply

Case for variable power supply with trimmer and switch.
Operating range 0-100 volts.
The case is equipped with a voltmeter to be able to immediately display the output voltage, at this voltmeter it is possible to replace a voltmeter-ammeter for a more accurate setting.
The voltmeter recess is 25x45 mm, while the holes for the potentiometer and the switch are 0.8 mm.
Various components have been used to build this variable power supply: power supply of a computer with 24 Volt output up to 4 amps, dc-dc converter XL6009 logic board, 10 kg potentiometer, switch for the output and finally two crocodile cables.
The case inside is able to accommodate the dc-dc converter through two towers on which to fix it.
In addition, for a better fixing of the wiring in the back cover, there is a housing for two plastic clamps which have the task of keeping the wires firm in case of draft.