This Geiger counter at the Chernobyl Nuclear Power plant uses five SBM-20 tubes.
https://postimg.org/image/703q51jtv/
The lowest scale on the meter reads in counts per second.
Looks like they may be wired in parallel.
Do you think the MightyOhn kit can handle 2 or more SBM-20 tubes in parallel for increased sensitivity?
Parallel SBM-20s for Increased Sensitivity?
Re: Parallel SBM-20s for Increased Sensitivity?
Yes, parallel tubes should work.
Jeff Keyzer
http://mightyohm.com
http://mightyohm.com