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 M4011 Tube question		  New Topic  Reply to Topic
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Gewehr

USA
13 Posts
Posted - 12/28/2013 :  00:35:42  Show Profile  Reply with Quote
I received a GMC-320 for Christmas. As advertised here http://www.gqelectronicsllc.com/comersus/store/comersus_viewItem.asp?idProduct=4560 , it is sensitive to Beta, Gamma, and X-ray. But if you look at the specs for the M4011 tube, it says it's only sensitive to beta and gamma? Which one is correct?
Reply #1

ZLM

1261 Posts
Posted - 12/30/2013 :  20:56:21  Show Profile  Reply with Quote
Beta, Gamma, and X-ray.
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Reply #2

Gewehr

USA
13 Posts
Posted - 01/01/2014 :  02:08:55  Show Profile  Reply with Quote
ZLM, thanks for reply.

I have a few more questions

1) is the tube energy-compensated?
2) is there a schematic available for the GMC-320?
3) is the blue potentiometer for adjusting the tube voltage?

Thanks
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Reply #3

ZLM

1261 Posts
Posted - 01/01/2014 :  20:36:56  Show Profile  Reply with Quote
1. I do not think the tube is energy-compensated.
2. No. The GMC-320 is not a open source project.
3. Yes. There is a blue potentiometer for adjusting the tube voltage. But the range of voltage adjusting is limited.
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Reply #4

Gewehr

USA
13 Posts
Posted - 01/01/2014 :  21:38:37  Show Profile  Reply with Quote
Ok, thank you.
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Reply #5

seb

10 Posts
Posted - 02/18/2014 :  02:14:53  Show Profile  Reply with Quote
Gewehr : X-rays are gamma rays, their energy change a little but they are of the same nature. So a tube that detects gammas detects x-rays.

The tube is not energy compensated.
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