开云体育

Hi

After Hans's 2N2222 win, this year's new challenge won by our friend

BARB WB2CBA

nice read:

73 DE muhsin TA1MHS

Awesome! I really enjoyed reading the write-up!
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73, Dan - W2DLC

Barb, way to go!

That its a very reproducible design with margins is commendable.

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Allison
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Post online only,?
direct email will go to a bit bucket.

Hans,

Thank you and Thank you for your support at FDIM before TX challenge. I appreciate a lot.

Next year I will be present as a spectator to watch your entry! No way I can beat you if you are participating! :)?
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73, Barb

Allison,

Thank you for your kind words. I appreciate a lot your comment as I value you as a mentor and learned a lot from your posts.?
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73, Barb

That's what you said last yea, Hans!
LOL
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73, Dan? NM3A

Congrats Barb
I really enjoyed the write-up, and was really curious as to the secret ingredient and how you obtained nearly twice the power I did. ?I was also at your banquet table.?
A fun little competition. I used basically the same IC, but used a push-pull configuration on the theory that it would generate less heat. I did lots of trial & error to find the best turns ratio. As you found out, the eleven volt supply level was the death point for the chip. Your custom circuit board was intimidating, as I typically dead-bug my circuits. Thanks for sharing your design process!
73 Paul K9ARF

Paul.... any time I want? my cardiac? pacemaker redesigned.... Let me know which company you work for so I can ... make my own evaluation of the risk :-)? :-)