FNIRSI GC-02: Support

[mryndzionek]

Here is an example link.

[Gissio]

It is my understanding the case of the GC-02 does not accommodate J321 or similar tubes. Can anybody confirm?

[mryndzionek]

It is my understanding the case of the GC-02 does not accommodate J321 or similar tubes. Can anybody confirm?

I don't have it, just asking if someone here has it, but looking at YT videos and reviews on Amazon, yes, it is too small for J321...
In this YT video you can see the PCB.

[IWasBorg]

It appears to be a smaller J613 previously used in certain GC-01 batches after J321 and before M4011. MCU appears to be a WCH CH32F203 but below's photo is blurry

Source: https://www.elektormagazine.com/review/fnirsi-gc-02-nuclear-radiation-detector-review