self made tools

If you are winding your own pickups, you want to know how many windings you want to wind. One option is to count the windings yourself or to build a winding counter from an old pocket calculator. What does it take?

  • old calculator
  • Reed Contact
  • Magnets for reed contact
  • a little wire
  • soldering station

TaschenrechnerTischrechner vor dem Umbau zum WindungszählerTischrechner offengeöffneter Tischrechner mit der Leiterplatte


An old computer is particularly suitable for this. This calculator still contains printed circuit boards with correct solder joints. First you have to look for the two solder joints of the "+" key. If you have found what you are looking for, you can test it with a wire remainder. Strip both ends of a piece of wire. Then enter 1+ on the computer. Use the wire to bridge the contact at the "+" key on the solder joints. At each contact the computer will list a number 1,2,3 and so on.
Once you have found the right contact, a cable is soldered to each of the two solder joints and led out of the computer. Afterwards the computer can be closed again. The two wire ends are connected to the reed contact. Now only the reed contact has to be mounted next to the shaft and the magnet has to be mounted on the rotor. In just a few steps you have built a pickup winding counter.

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