Bracelet for removal of a static charge. Tips for a beginner radio amateur

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Bracelet for removal of a static charge. HAM Tips

HAM Tips

When working with transistors and microcircuits of the MOS structure, precautions are recommended to prevent damage to devices by static electricity. One of them is the use of a "grounding" bracelet. This is usually a watch strap, on which a plate is fixed, tightly pressed to the hand and electrically connected by a flexible conductor to the ground line through a 1 MΩ resistor.

To increase the convenience of using the bracelet, I propose to bend a plate made of a strip of tin around the strap, and to strengthen a small magnet at the end of the flexible connecting conductor. If a magnet is placed on the plate of a bracelet put on the installer's hand, the charge from his body flows "to the ground". The "grounding" of the soldering iron is provided by moving the magnet to its body.

The magnet can be used from burglar alarm sensors, DC micromotors or furniture door latch. The surface of the magnet in contact with the bracelet plate should preferably be sanded.

Author: V. Senkevich

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