Search found 2 matches

by ealbers
Sat Apr 15, 2017 11:30 am
Forum: Geiger Counter
Topic: HV section question
Replies: 1
Views: 7860

HV section question

I've looked at the high voltage schematic, can you please outline exactly how it creates high voltage?
I see the 555 timer, and a single coil, how does this get up to several hundred volts??
Thanks!
by ealbers
Sat Apr 15, 2017 5:21 am
Forum: Geiger Counter
Topic: How to use with small 2cm tube?
Replies: 1
Views: 7698

How to use with small 2cm tube?

Anyone tried using one of these tubes? How would I hook this up to the circuit? I need to read levels in a small enclosed 3.5 cm diameter area, so would have leads heading to/from the area Thanks! http://www.ebay.ca/itm/SBM-21-Tiny-Geiger-counter-tube-NEW-mini-2cm-long-Dosimeter-Radiometer-sbm-20-/2...