Please visit this web site if you want to purchase or learn more about the Geiger kit I am offering. [Edit 10/04/24] The kit associated with this project is no longer available.
I'll leave the pics and video here, but you'll find all the details about the kit through the link above. However, you can leave a comment here if you like.
Geiger Kit PCB . . .
The video gives a pretty good introduction to the GK-Plus