Round Interconnect Circuit Board Pre-cut round circuit boards 20mm in diameter. Speed up your project development time! Save a ton of time not having to cut the boards yourself.. Solderable on both sides of the board! Center contact and two mounting holes for a switch (or wires). These are made for the RoughStacks but we've found that they also work in the Goldrush tubes as well as some other 18xxx based flashlight tubes. |
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