n3mtj (2K)
The Key

OK, you have an old retired audio mixer with more buttons than you know what to do with, and a bunch of old holdup buttons you saved from a dumpster for "that unknown project", what do you do with the parts?

More to the point, what do you do on a rainy day with nothing else to do?


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First, the keyA bit closer
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Very close showing button cap which was a knob off an audio mixerInside, showing the weight and how button cap was notched for leaf spring mounting
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Side view showing leaf switchUnder button cap, showing epoxy for stiffness and bounce reduction
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View of entire interior showing liberal epoxy use to hold weight in place

Over all, it seems to work fairly well. I had to debounce the contacts with epoxy. If I ever get a bakelite strip of the correct size, I may put it under the lower contact. However, since all dits and dahs sound alike after a few seconds, CW is not a high priority. I was hoping the project would spark a bit more interest in CW for me. I did have fun putting it together, though!!