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 gmc-500+ not reading anymore

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skiredall Posted - 05/21/2022 : 22:24:11
Hi everyone,
Couple of weeks ago, I purchased gmc-500+ and configured to upload data as well. It was normally functioning and reading around 15-30 CPM normally.
Yesterday it stopped to read any data and showing O CPM only.
I have tried factory reset as well as removing the battery but nothing helped.
Can anyone help me?
2   L A T E S T    R E P L I E S    (Newest First)
EmfDev Posted - 05/31/2022 : 10:48:02
Hi skiredall, you can just compatible tubes as long as they can fit in the tube holder, you may need to solder/recalibrate if tubes are different. But you can just buy same M4011 tube to replace the old one.
skiredall Posted - 05/23/2022 : 00:09:25
I have found the problem was in broken tube 4011.
Can I substitute it with other compatible tubes?

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