I got on a list for a semi kit, and waited, and waited, but fell thru the cracks in the system. I already had most of the parts - it was easier to just get it done.
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On Thu, Sep 12, 2024 at 07:55 AM, K9HZ wrote:
You had boards made?? And to think, I sell them for $1.
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Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ
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Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
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Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it:
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Moderator: North American QRO Group at Groups.IO.
Moderator: Amateur Radio Builders Group at Groups.IO.
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email:? bill@...
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? ?I've also been slowly working on replacing the uBITX PA chain, and have been looking at options.
? ?I had boards made for the subject 20 W amp, and have procured the recommended heat sink. Both are unfortunately large if one wants to stuff them into a uBITX case.
? ?The PCB is 2" x 5.5" (about 5 x 14 cm).? The heatsink is 6.9 cm wide, 15 cm long, and 3.6 cm deep.
? ?Attached photos show it in comparison to the QRP Labs 10W amp (capable of 20 with more drive and DC input, apparently).
? ?Separately, I have purchased a 50 W linear from a Ukrainian ham that has had a 10 and 20 W amp on the streets for some time - they look like they might be the origin of the subject 20 W amp. The 50 W amp has been bulletproof.
On Wed, Sep 11, 2024 at 11:20 AM, Robert Dale wrote:
What is the 20W PCB size? Can’t seem to find it anywhere….
Also, is there still stock on the semi-kits?
