I should have added how I made the contacts: I filed slots in the side
panel and fitted M4 washers with M3 screws to give me some adjustability in
contact spacing. That made for a rather hard contact, so, you might find a
way of springing the grounding contact and it will be more comfortable. I
found the pcb needed tinning with solder to make a good contact pad.
David
G3UNA
As others have said, my first paddle was a hacksaw blade but take care of
the sharp points!
Better is a strip of pcb material, or 2 strips with a separator for
iambic.
From memory I used about 5mm wide and about 40mm from the fulcrum, which
can
be just a wood block with 2 slots cut and a screw through to pinch
together. If you start to get ambitious, you could make the whole
keyer/oscillator on the pcb, perhaps a TIC keyer.
I did this to fit inside the base of a Norcal 20 with the paddle sticking
out of the side to which I screwed a pair of Kent paddle handles. You
could just shape the pcbs into large finger pads.
David
G3UNA
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