[Swlug] DIY Geiger counter success?

[Rhys Sage]

I rebuilt the circuit on the breadboard again, having had no worthwhile readings from my oscilloscope. I'd been excited to see a faint wavy line on the scope. That excitement was dashed when I noticed the scope did exactly that line, on its own.

I connected a speaker where it was supposed to feed to an Arduino and to the power line. I got a very quiet low frequency and consistent buzzing noise. That is welcome.

Now I'm wondering if I should be getting a continuous buzzing. I'll play with it a bit more. I'm running it now off a 9v battery. The 10M resistor ended up as 1M as I don't have 10M.

A noise is better than I've had so far. Better than that - a noise that wasn't accompanied by plumes of magic smoke. 

I have a bit more fiddling to do with it then I had an ampule of Tritium to test it on, on the way. After that I'll code the Arduino driver.


Rhys Sage