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Mechanical QRSS Keyer, MkII
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This is a cam-wheel based mechanical QRSS keyer(very slow CW over HF-radio)
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Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- Creative Commons — Attribution — Noncommercial — NoDerivatives
This is a mechanical QRSS keyer(very slow morse code). This can key a transmitter of lower power. Coded cogg wheel needs to be adjusted for your personal ham radio callsign.
Parts needed:
- 3 Shafts, 5mm diameter. 46mm, 52mm and 32mm
- 2 ballbearings, 16mm outer diameter, 5mm inner diameter
- Geared DC motor, 12V 100RPM. JGY-370
- Microswitch
- 2 m3x5 screws
- 1 m2.5x20 screw with nut
- 2 4mm lab contacts
- 3 BNC Chassi contacts
- Copper wires
The combined 1:4 wheel marked T is with tight fit, that one is closest to the coded wheel.