NCT414 Kit – 2 tubes not working

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This topic contains 2 replies, has 1 voice, and was last updated by  Tulio Silva 8 months, 1 week ago.

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  • 25.08.2023 at 15:20 #44938

    Tulio Silva
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    After powering up my tube clock, everything looks like it is working well, except two tubes are not turning on: the 1st-hour digit and the 2nd-minute digit.
    I added some electrical tape to avoid contact with the top of the capacitors.
    I swapped the tube’s position to test, and the tubes looks like working.
    Leds are ok. How should I start a troubleshooting measuring to see where are the problems?

    • This topic was modified 8 months, 1 week ago by  Tulio Silva.
    25.08.2023 at 15:23 #44939

    Tulio Silva
    Participant

    NCT

    • This reply was modified 8 months, 1 week ago by  Tulio Silva.
    25.08.2023 at 15:24 #44940

    Tulio Silva
    Participant

    NCT1

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