Simple CW keyer (elbug) 30.12.2005 OH7SV
This is an ultimatic type keyer with Dit priority

Circuir diagram
Component layout
PCB artwork


The keyer installed in the JUMA-TX1

See also the two small keyers in the same picture. Observe thru-hole IC as a size reference.
The left keyer is a tiny 6 pin PIC design by OH2NLT, the right keyer is a LOGIC design by OH7SV