From: jl@glen--canyon.com
On Tue, 24 Feb 2026 12:34:00 -0800, Joerg
wrote:
>On 2/22/26 7:15 AM, ehsjr wrote:
>> On 2/21/2026 5:10 PM, Joerg wrote:
>
>[...]
>
>>> The next urgent problem is supposed to arrive Monday before 10am.
>>
>> My next urgent (OT) problem is due this afternoon:
>> blizzard with 14 - 24 inches of that white global
>> warming predicted.
>>
>
>I want my fair share of this global warming!
>
>
>>> Maybe I get a chance to walk the dog before it's here.
>>>
>>
>> Snowfall keeping me from going to the gym.
>>
>
>Shoveling lots of snow replaces the gym :-)
>
>In my case it's splitting firewood so my gym visit are sparse now.
We just got a new bench for our outdoor deck. This morning we were out
here in our panties getting our Vitamin D.
The blue jays and crows harass us, wanting us to feed them Cheetos.
One of my guys did a JLC proto board. It has edge-launch SMAs. The
center pin is fat on the cheap connectors, so we have a big pad for
soldering.
But that makes a capacitive glitch unless you cut away all the
interior PCB planes. He didn't.
I dremeled from the bottom all the way up to remove the layer 3 and 2
copper pours. Tricky. I was about 3 mils from punching through to the
other side.
https://www.dropbox.com/scl/fi/k1fd6i5upfjo7uucq2sx6/X126A_SMAs_
op.jpg?rlkey=871v8n1ng388yz11ibjr1sz2e&raw=1
https://www.dropbox.com/scl/fi/ubqushwcc19xww9hc5azf/X126A_Dreme
_SMA.jpg?rlkey=610uod206u93z4x1iysvwp4n7&raw=1
Since I replaced the copper and the FR4 with air, the transition went
from very capacitive to slightly inductive.
John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics
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* Origin: you cannot sedate... all the things you hate (1:229/2)
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