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Re: QDX: Troubleshooting high output power


 

On Mon, Oct 14, 2024 at 01:24 PM, Ben Sanders wrote:
Is there any way to check the binocular transformer without removing it?
Not that I'm aware of.? But some have found that they didn't get all of the enamel off the wires that solder into the board - especially with that thicker gauge wire which has thicker enamel.? Perhaps re-heating the connections with a hot iron can burn more of it away if this is an issue for you.? On mine, I almost caused an issue by inadvertently scraping some insulation off while I was winding it, which would have caused a short in the windings.? This happened because of the sharp ridges at the inner edges of the holes.? I saw it happen, and recovered from it while building.? I used a small knife blade like an awl to round off the sharp edges of the core so it wouldn't scrape anymore.?? And other than that, I just know that a previous poster here said he re-wound that transformer and it solved his problems.
BTW - I have a QMX, not the QDX - but they are very similar.? The QMX diagnostics have a LFP sweep which is very useful...

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