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Re: reviving my sbitx v3


 

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Yes, it can be quite confusing. It's also possible that an errant hot wire from a bench psu touched somewhere. I had to step back from this one for a while, because I was beginning to get frustrated and we know where that can go! So I decided to work on assembling a K9HZ 20w pa board that I will probably drive with my Lime mini 2. I also have a radioberry 2 that I am working on getting configured properly. So with the three different projects going at once, I can always move to another when I start getting frustrated and tired of one.






-------- Original message --------
From: "Gordon Gibby KX4Z via groups.io" <docvacuumtubes@...>
Date: 3/14/25 6:41 PM (GMT-05:00)
Subject: Re: [BITX20] reviving my sbitx v3

Sounds like another case where something is screwy.

I don’t think you could blow D7 unless you had reverse polarity power.
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so there may be a mislabeling or a screw circuit board here. Or maybe just a mistake in figuring out where things are blown.
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but all of these combined to make it extremely difficult to figure out what the heck is going in very carefully measure and look and pride and think and compare figure out what really is blown and what isn’t and where it is really connected and where it isn’t!!
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we’ve already seen one example where this unit was wired differently from everybody else. ??
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gordon Kx4z?

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Mike - K8MCB?

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