One of those useful things to have around on your bench is a decade resistance box, essentially a dial-a-resistance instrument. They used to be quite expensive in line with the cost of close-tolerance ...

Electronic enthusiasts may be interested in a new Kickstarter project created by Eastwood Tech for the QR10 a pocket high accuracy programmable resistance box. “A revolutionary physical instrument ...

[Stynus] has finished a unique decade resistance box which doesn’t use conventional rotary switches to select the appropriate resistors. These switches are old fashioned and expensive, so [Stynus] ...