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Is the rectifier working?

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zapped

Post subject: Is the rectifier working?

Posted: Mon Nov 24, 2014 10:28 pm

Joined: Fri Sep 19, 2014 11:57 am
Posts: 2

Hi, I'm new to this, building a tmb and reached the stage where I've installed the rectifier (only) and checking for B+. I'm reading 445VDC for B+ but the schematic tells me it should be 350VDC.. All my plate volatges are in the 440VDC range. Is my rectifier working properly? Is there a way to check if the rectifier is working correctly?

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kurtlives

Post subject: Re: Is the rectifier working?

Posted: Mon Nov 24, 2014 11:11 pm

Expert

Joined: Sun Feb 17, 2008 4:47 pm
Posts: 960
Location: Toronto, Canada.

Once all the other tubes are in and a speaker is connected the B+ will drop.

What you are seeing is normal

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Last edited by kurtlives on Tue Nov 25, 2014 5:19 pm, edited 1 time in total.

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coco

Post subject: Re: Is the rectifier working?

Posted: Tue Nov 25, 2014 12:34 am

Holy Ghost

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7519
Location: Canada

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zapped

Post subject: Re: Is the rectifier working?

Posted: Tue Nov 25, 2014 9:57 pm

Joined: Fri Sep 19, 2014 11:57 am
Posts: 2

Thanks for the quick response. Installed all tubes and speaker, getting better results.

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