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16  Using Arduino / Project Guidance / Arduino counts per minute calculator? on: August 05, 2012, 03:24:32 pm
Hello. I found a really simple schematic to make a Geiger counter clicker. For when I want to get the CPM, can I just override the clicker/LED and connect it to the Arduino for CPM calculation?

-FlamTurpolt
17  Using Arduino / General Electronics / Re: What diode is this? on: July 24, 2012, 10:12:23 pm
I totally forgot that I didn't see any LED's on that. Thank you.
18  Using Arduino / General Electronics / What diode is this? on: July 24, 2012, 10:06:13 pm
I recently found a very simple schematic to make a very simple Geiger counter. In the schematic, I can't tell what type the diode is. Can anyone help me? Here is the schematic:
19  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 30, 2012, 09:13:57 pm
I researched Elektor's photo-diode kit. It seems pretty cool. Has anyone ever bought this kit? It is in my price range.
20  Using Arduino / General Electronics / Re: 4 pins on my laser diode instead of three? What should I do? on: June 29, 2012, 06:54:22 pm
Ok.
21  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 29, 2012, 06:49:06 pm
Given that you are just looking to test fiestaware you may want to consider a spinthariscope rather than jury rigging your own geiger counter.  They don't need batteries, and provide a visual indication of radioactivity.  And they meet one other of your requirements--they are cheap.

http://unitednuclear.com/index.php?main_page=index&cPath=2_12

Well, a Spinthariscope needs total darkness for I think about ten minutes. Something that is not possible in an antique store.
22  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 28, 2012, 08:36:35 pm
I saw a resistor in the schematic that was labeled 4700k. Does this 4700k ohms? By the way, I found some radioactive fiesta-ware today. I also have a video about the fiesta-ware I found today, if anyone is interested.

23  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 28, 2012, 07:26:25 pm
Thanks, I will consider it.
24  Using Arduino / General Electronics / Re: 4 pins on my laser diode instead of three? What should I do? on: June 28, 2012, 08:29:01 am
All of the pins have connections to flexible circuitry on the back.
25  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 28, 2012, 08:27:22 am
Is it portable?
26  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 27, 2012, 08:36:13 pm
The tube I found detects beta and gamma. Unfortunately no alpha smiley-sad. It'll do, though.
27  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 27, 2012, 08:30:04 pm
The guy who made the schematic posted videos of it working. I am looking at a Geiger tube to buy that runs on that voltage. Can anyone tell me the parts list? smiley
28  Using Arduino / General Electronics / 4 pins on my laser diode instead of three? What should I do? on: June 27, 2012, 08:09:25 pm
I salvaged a laser diode from a broken DVD player. But the laser diode has 4 pins instead of the usual 3. One of them has an arrow pointing out, but none of the others have labels. What should I do?
29  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 27, 2012, 07:18:09 pm
 smiley
30  Using Arduino / General Electronics / Re: geiger tube schematic, help with components sourcing? on: June 27, 2012, 06:36:01 pm
Disposable cameras are in the $5-$10 range. They would be cheaper.
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