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So would IBestGlennSent via the Samsung Galaxy A52 5G, an AT&T 5G smartphone

Ashhar Farhan, I too would be interested in a board set for the sBITX. 73 Evan AC9TU

Yes, I would also be interested to see this as a board or kit available for purchase. -- '72 Aaron K5ATG

Tom You may have to go to the wayback machine <https://archive.org/web/> but in years long past there were a couple of hams who published their work in making their own vacuum tubes. They were working

Yes, i just got the digital board going. It works well on its own. I am going to plug it into the ubitx to test it out. I am planning to get a few made and populated (there are two, hard to solder ICs

Any chance that once your are ready you will post a PCB board on OSHPark or similar site along with a parts list here? Enjoyed the talk and I am excited about the prospects. 73

Mike, John describes it pretty well here: /g/BITX20/message/88855 He uses the coax outer braid for one winding of two turns, the coax inner conductor as a second winding of 3 turns.

All, How do you measure frequency to get a really precise calibration on your radio? Right now, my uBITXv6 is within a hundred Hz or so. I did it by going back & forth between the setup screen ( using

If I use the braid for the should I connect the inner conductor to the braid? Mike N2MS

This is very interesting, thanks! Currently I have another board to take to power up to 50W. Rafael

It is amazing the technology we now have available to us, either inexpensively manufactured or surplus equipment, nowadays. A good vacuum pump probably ?cost a fortune back then. Although my father

Thank you for all your work. -- Lee - N9LO "I Void Warranties"

We were poor kids back then and the access to quality vacuum pumps was nil. Gordon

Will do. I imagine it will be a learning adventure to get there. Tom, wb6b

Tom, if you get this working, let us all see how you did it. I tried to build a DIODE as a teen and never succeeded. Gordon

Yes, that worries me, too. Thanks for the warning and advice. That is why I'm only using small glass containers with very thick glass and I'm not drilling the holes in the body, just in the smaller

The vacuum pump can be nasty. VU2GT, George, the legendary antenna man of India had made a vacuum pump for our satellite business. One day, he asked his driver to keep an eye on the cubesat vacuum

That should bb 12 x 10-3 torr, or 12 microns. I'm just getting familiar with vacuum terminology. Tom, wb6b

All, I indulged in a slightly upscale version of this tester: https://www.amazon.com/Transistor-DROK-Capacitor-Capacitance-Automatic/dp/B01MS1FOYM I chose "DROK" because I have some of their clip

I recently bough a cheap two stage vacuum pump and am having a lot of fun learning about the ins and out of keeping a vacuum. First I'm trying simple, before rushing out and buying KF fittings and