Re: Homebrewing a uBITX according to M0HYT


Joe Puma
 

Wow what a undertaking for someone who is not even an EE and you seem like you already are familiar.  Bravo 👏🏼 👏🏼👏🏼👏🏼

Joe
KD2NFC 



On Mar 25, 2020, at 2:18 PM, marko.barovic.me@... wrote:

Hi all! Thanks for having me in this great group of people!

I'm a ham for some years now but I don't have much experience in any aspect. Since I'm a medical doctor and not really formally educated in electronics and like to tackle a big challenge to make me learn stuff, I decided to build a uBITX from scratch according to the plans of M0HYT and based on his PCB design. Now, my PCB is getting made and I'm starting to source the parts I will need.

I came accross the trifilar wound toroids that need to be wound by hand apparently. That is of course no problem, I am excited to learn about absolutely any part of the project I will need to. However, I'm a bit confused by the schematic as to what I need to do and I can't really find the answer on the internet.

 
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So this is the toroid I'm supposed to wind. Does this mean that I wind three turns trifilar and then continue up to 8 turns with only one wire?
Also, if there's a universally accepted toroid core people are using, I would be very thankful to know about it!

Thanks a lot in advance!

73

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