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5 Decade Rotary Switch Programmable Resistance Board 0-99999 Ohms - Project info/download and PCB Order Page

Build a 5 decade programmable resistance box that uses five 10-position rotary switches to adjust resistance between 0-99999 Ohms, helpful for developing and troubleshooting electronic circuits.

Requires soldering and assembly. Please only attempt to build this item if you have experience and confidence with soldering and project assembly.

Please be aware that the kit is for electronics hobbyists only – it is not calibrated and some tolerance for error in the resistance values should be expected after construction.

You can order a PCB for the project below. Full Kits may also be available on eBay (AU Only), subject to component availability.

To construct one, you will need:

The PCB (95mm x 65mm). You can order a PCB below (subject to availability) or download the Gerbers or Kicad 5.0.2 design files and have the PCB fabricated yourself.
Enclosure (aprox. 100 x 70 x 30mm). We found the TAKACHI YM-100 works great.
Drilling template/decal for project box. To be laser-printed on a transparent or opaque sticker and applied to the project box. Download the template here (95 x 65mm).
5x 10 Position rotary switches, available from Mouser, Sparkfun, eBay, Core Electronics, etc
Throughole resistors: *
- 9x 1Ω resistors.
- 9x 10Ω resistors.
- 9x 100Ω resistors.
- 9x 1kΩ resistors.
- 9x 10kΩ resistors.
2x Banana jack sockets.**
5x knobs for the rotary switches.

* Resistors can be 1w, 0.5w, or 0.25w - the wattage of the resistors will define the max wattage for your decade resistance box.
** If using the TAKACHI YM-100 enclosure then we found that we needed to get the style of banana plug sockets with a long threaded shaft that can bolt onto the PCB and still clear the top of the case such as these.

Here's a video covering construction:

Shipping will be via Regular UNTRACKED letter sent from Australia (please allow 2-3 months shipping for international addresses).
Shipping cost will be added after you make your selection below.
Australian orders include 10% GST.

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Questions? contact store2020[at][this domain]