Damn. I'm stuck. [resolved]

btol · 1835

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Offline btol

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on: December 15, 2022, 06:09:30 PM
Got the transformer wired for 120V and I'm getting no voltage. 0V on xformer terminals 6/7 and 9/10. 0V on terminals L/N of the IEC but had 120.3V previously. I've retraced my wiring a few times to make sure everything goes to where it's supposed to be. Any ideas?
« Last Edit: December 16, 2022, 07:31:12 PM by Paul Birkeland »


Offline btol

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Reply #1 on: December 15, 2022, 06:10:43 PM
More pics


Offline Paul Birkeland

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Reply #2 on: December 15, 2022, 07:18:39 PM
I would check to see if the fuse is blown.  You should still see the 120V at the L/N terminals of the IEC module. If the fuse is blown, replace it and let us know if it blows again and we can make some additional suggestions.  I don't see anything that looks amiss in your build so far.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline btol

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Reply #3 on: December 16, 2022, 05:46:48 AM
Thank you Paul. I had some 3A slo blo and 10A fast blo fuses lying around. Tried both types and still getting 0V for all three readings. Not sure what happened since I did get 120.3V off the IEC prior to starting the xformer wiring.


Offline Paul Birkeland

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Reply #4 on: December 16, 2022, 07:42:34 AM
Are the fuses blown?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Doc B.

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Reply #5 on: December 16, 2022, 08:50:53 AM
And are the fuses being installed correctly, in the clip part of the fuse holder rather than the square tube ?

Dan "Doc B." Schmalle
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Offline btol

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Reply #6 on: December 16, 2022, 04:55:49 PM
I appreciate the speedy responses Paul and Doc B. Checked the fuses and they all had continuity and had been installed in the clip of the fuse holder. I decided to get a better meter and that seems to have done the trick. I think I'm back in business. Could you confirm I've got this new meter on the correct setting?


Offline 2wo

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Reply #7 on: December 16, 2022, 05:16:29 PM
Yes, that is the correct setting to measure AC voltage...John

John Scanlon

Offline btol

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Reply #8 on: December 16, 2022, 05:19:50 PM
Quote from: 2wo on December 16, 2022, 05:16:29 PM
Yes, that is the correct setting to measure AC voltage...John

Thank you! Excited to get going again.


Offline btol

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Reply #9 on: December 18, 2022, 06:56:33 AM
Ugh. My first point-to-point experience. Accidentally took some ceramic off a resistor using needle nose pliers to wrap wire around a terminal. Should I not sweat this and move on or should I replace the resistor?



Offline Paul Birkeland

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Reply #10 on: December 18, 2022, 06:57:49 AM
Just double check that the resistor still measures properly with your meter.  If it does, you can leave that alone.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline btol

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Reply #11 on: December 18, 2022, 06:04:48 PM
Thank you. The resistor measures fine so I left it in place. I got up to the raw b+ voltage check today and am getting 328V. Is it OK that I'm slightly over? Having fun so far and excited to hear how the Moreplay sounds!
 


Offline btol

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Reply #12 on: December 18, 2022, 08:10:53 PM
Just saw the b+ thread right under this one. Looks like I'm ok.


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