SBT9 geiger tube holder for the Vindolins geiger enclosure http://www.thingiverse.com/thing:270764

Originally Vindolins enclosure is for si29bg tube but SBT9 alpha capable tube fits well too.
However this SBT9 has no separate connection for cahode ("-") so I have designed this insert to have the SBT9 firmly in the case and its cathode having a "connector"

If you found my design useful or inspiring and would like to buy me a cup of espresso you are welcome to tip me:

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=U25V96GZNVL3N&source=url

Thank you!