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And now the two new faults are repaired!
Thanks for all the help

I have (finally) finished the second kit. after testing the IC's from the defect kit, I see that IC2 is broken. (IC1 seems ok) With the broken IC2, all tubes light up in the new kit, so it is not a faulty IC2 that was the reason that the first tube won't light up in the first kit. PS: In the new wor...

I was afraid of something like that. But! I have had another night of whiskies and soldering, and have finished my second kit up to the first test. (I also have put som "shrinkwrap" (don't know the english term) on my testleads to lessen the chanse of something similar happening in the fut...

Oh no! this is so not cool! I was unlucky, and shorted something with the testleads of my multimeter. I think maybe it was two pins on tube one. Now, the tubes displays several digits at the same time, although changing modes as usual. (scramble doesn't seem to work that well) I measure 37VDC on the...

Yes the led under the faulty tube lights up.
Does that mean there should be power to the tube?

(good to get confimed my assumtion about the getter pellet)

Hi. I just finished my thermometer, and thought i checked everything, but sadly I didn't notice that the first tube won't light up before after i finished asembling the case around the printboard. the thermometer seems to be working ok otherwise, although maybe showing a bit low temperature. (not co...