wemos 4 digit clock - Not getting 170v on High voltage

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2 months 6 days ago #10333 by Farsider
Cheers
This is all fairly new to me

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2 months 4 days ago - 2 months 4 days ago #10347 by Ian
OK, I'll put it together hopefully tonight, it shouldn't take very long.

It's just the board build up until where you are: No need to send the Wemos back or anything.

I'll contact you privately with the address...
Last edit: 2 months 4 days ago by Ian.

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2 months 4 days ago #10352 by Farsider

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1 month 3 weeks ago #10381 by Ian
Just to say that I sent it out the other day.

It look longer than I expected, because, believe it or not, I couldn't get the required output voltage. How ironic.

The problem was that I had got the 16v 220uF and the 400V 2.2uF capacitors inverted, and it was breaking down at 25V or so. Eventually the 16v part popped it's top and I figured out the mistake.

I know the circuit well enough that I wasn't following instructions. At least I thought I knew the circuit well enough. Clearly not the case.

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1 month 3 weeks ago #10383 by Farsider
Thanks Ian.
Over familiarity gets us all at some time.
Also I got notification that it had been sent..
Should get it in a week or so.
Will let you know how it goes.

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1 month 3 days ago #10416 by Farsider
Hi Ian
Got the new PCB a few days ago.
All good but one of the tubes has stopped working (x10secs one).
Initially fine and ran with no problems, then after switching off to reset it came on briefly and now doesn’t come on. Any suggestions to check?

Also what password and user name do I use?
I’m sure it will be obvious, but just not to me at the moment.
Thanks

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