Had similar issue, brought the bias up too quickly and popped the finals.? Finally brought the bias up very slowly and as soon as it started pulling current stopped all appears to be well.
From: blunde04 Sent: Friday, January 19, 2024 8:31 PM To: [email protected] Subject: Re: [BITX20] V3 versus V2 SBITX Board - What are the differences?
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I am stuck with a 90 day old non-functional v2 unit, that will not calibrate the new power transistors that I bought.? Yes, I followed all the suggestions give to me in this forum however-- the moment i turn the bias adjustment off counter-clockwise it blows the transistors.
At that point (three sets of transistors replaced)? I was hoping for a response from Farhan about the v3 upgrade components, in hopes that those would give me a functioning radio, but this far I have gotten zero feedback on how to move forward from Farhan, so the sbitx has been shelved. I may just sell it.