Ham Radio KITS - TOP PAGE - Washington Island BOOKS

October 22, 2011 - Bug Descratcher kit - SOLD OUT

Bug Descratcher II kit coming soon

The Bug Descratcher kit is our version of a circuit from the September 1992 issue of QST by WX7G, Dave Cuthbert. The Bug Descratcher removes the "scratchiness" encountered with semi-automatic keys (bugs) due to contact bounce. It can also be used with straight keys. It features:

[Bug Descratcher circuit board picture - 
click for larger version]
  • a debounced output to eliminate scratchy sounding keying
  • optional solid state relay (SSR) output to key nearly any rig (solid state, tube positive or tube negative kerying voltage)
  • available as a board only kit
  • board size: .7 x 1.5 inches
  • operates from 13.8 volt supply
  • picture shows the optional solid state relay socket

  • Kit Documentation: download (Right click/save target as) and print the Bug Descratcher kit manual , schematic diagram and hookup diagram all in Adobe Acrobat (.pdf) format.
    Also, a text file of diagnostic measurements.

    For larger quantity purchases, to combine with other items, for DX purchase price or for any other questions, please send an email to me, Chuck Olson, WB9KZY at:

    with your question or the items you want and we'll email you a Paypal invoice.

    Ham Radio KITS - TOP PAGE - Washington Island BOOKS