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BK-50 Swallow Bug Key Knob

by M0ZGB

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amateur radio Morse code telegraph amateur radio Morse code telegraph

I bought an old (1950's?) BK-50 Swallow Bug Morse key which needed some TLC. The original knob and paddle were both missing, so I had a go at 3D printing my own. I had to go by photos on the Web and judge size, but it seems pretty close. Printed in black PLA with 100% infill. the centre hole is 3mm, which should be the correct size for an attachment screw/stud. I cut the original screw's head off and it self tapped nicely into the hole.

Please see my other design for the matching paddle.

T

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