tag:blogger.com,1999:blog-7590176649168185428.post1605057045452179262..comments2024-03-17T14:27:31.716-04:00Comments on SolderSmoke Daily News: The Return of the Michigan Mighty MiteBill Mearahttp://www.blogger.com/profile/07662500663603350847noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7590176649168185428.post-40058227601372830342022-01-15T18:15:03.959-05:002022-01-15T18:15:03.959-05:00I need some help on this one. Maybe you've see...I need some help on this one. Maybe you've seen the video on YouTube. So I've built it mostly close to the one offered as a kit by QRP Guys. Just because I didn't had a bigger PCV pipe and opted for a T50/2 toroid instead. With a BD139 transistor... all I got was 100mW out. I recently tried changing the coil ( version for the 40m band ) I noticed I would need a 32mm PVC pipe... and 21 turns with tap on 14 for L1 with AVG #20 - #22. All I have is 20mm PVC pipe... and #25 wire. I wonder how to calculate it properly... as I made the conversion to uH of the original design... and replicated the inductance on my coil... same for L2... and the results are still too low. I know I should get at least 400 - 500mW out but I just don't seem to get there. Thanks so much in advance. 73Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7590176649168185428.post-72334950264086897172011-03-15T12:57:06.768-04:002011-03-15T12:57:06.768-04:00Hehe, I can see now that it's the same rig as ...Hehe, I can see now that it's the same rig as the image in the book.<br /><br />Thanks for posting the note. Check your email for more exciting updates from the Hoos in C'ville...<br /><br />72!BertTheRunnerhttps://www.blogger.com/profile/02729382063490800247noreply@blogger.com