TubeHobby NCV2.1 Clock Problem

[Chris S-S]

Hi.

I read daily the goings on in this group and marvel at the knowledge of the contributors herer so I hope somebody can point me in the right direction.

I built this clock a couple of years ago and all has been fine until the low voltage plug in power supply decided to fail and managed to take out the high voltage power supply as well., I managed to find the fault and repaired the High voltage power supply this morning.

Once reassembled and plugged in it is running fine but showing faint echoes of the other nixie pairs (hours .minutes etc.).

I uploaded a video to hopefully show the problem clearer at Nixie problem and the circuits can be found at NCV2.0_manual.pdf..

Hopefully someone here will be able to suggest the route to getting my clock sorted again.

Thanks

Chris

[Nicholas Stock]

Chris, did you check the high voltage on the board..should be about 170V DC...the clocks are fused, so I'm surprised a blown wall wart caused this issue...perhaps you've fried one of the K155ID1 chips? Give Jonas an email at Tubehobby, I'm sure he'll know how to troubleshoot..

Best of luck!

Nick

Chris

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