Re: [qrptech] FYI Cheap ($2!) vernier dials from Aliexpress
Send me the Link and I make you a screenshot. With best regards Tam HANNA -- Enjoy electronics, 3D printing and cigars? Join more than 21000 followers on my Instagram at
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Tam Hanna
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#2081
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Re: [qrptech] FYI Cheap ($2!) vernier dials from Aliexpress
You can search TEMU and other sites with Google. Describe the item, theen add the company's name after a space. I see a 10 or 20 turn pot and dial for under $4 on Temu, but my satellite internet is
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Michael A. Terrell
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#2080
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Re: [qrptech] FYI Cheap ($2!) vernier dials from Aliexpress
Well, sorry about the inaccurate price. I got 10x for $38.65. It was a portion of a larger order. Sometimes I order 10x and get shipping charged for one. In this case I obviously did not care. It was
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Reginald Beardsley
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#2079
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Re: [qrptech] FYI Cheap ($2!) vernier dials from Aliexpress
that if you pay 2USD for one, you pay about 2USD for shipping too... unless... and maybe you can find...as you search through Ali, one for 2USD... with free shipping. IMO, that won't happen. And as
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Roy Thistle
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#2078
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Re: A pot box
That is truly a work of art. I was just eyeballing mine together while they finished running LED lamps and wire in my shop today. I still need to build the EMI filters and power them, but I've got 2
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Reginald Beardsley
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#2077
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Re: A pot box
When building a complete instrument it usually takes me 2-3 times as long to package it as it does to design/build the electronics and software. Case fabrication, layout, labeling/painting, assembly,
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Paul Amaranth
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#2076
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A pot box
All those verniers cried for something to do, so I built a box with banana jacks and 100k and 1M linear pots.? Not sure I'll ever use it, but I had all the stuff on hand. Took a *lot* more time than
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Reginald Beardsley
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#2075
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Re: [qrptech] FYI Cheap ($2!) vernier dials from Aliexpress
Sorry. forgot to mention they are 8:1 ratio.
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Reginald Beardsley
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#2074
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Re: [qrptech] FYI Cheap ($2!) vernier dials from Aliexpress
An update on these: https://www.aliexpress.us/item/3256804374910172.html The range of rotation is ~300 degrees with clutched stops at the ends. They take a 6 mm shaft, so drilling out is needed to
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Reginald Beardsley
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#2073
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Re: Open-hardware power rail oscilloscope probe
That's great advice. I tried something like that for a switch panel in my van, with an aluminium core PCB, but the finish wasn't great - I foolishly specified no silkscreen, hoping for a matte finish,
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Patrick Coleman
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#2072
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Re: Open-hardware power rail oscilloscope probe
As another thought, you can drill holes and reverse mount surface mount LEDS (gull wing ones?) on the back of the board.? Put a sheet of transparent plastic over the PC board to protect it and the
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Harvey White
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#2071
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Re: Open-hardware power rail oscilloscope probe
Excellent writeup and project! Would buy one immed but had some significant family medical costs in november. Tucked the info away for hopefully the near future. Thank you again, this will be very
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Jesse Lackey
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#2070
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Re: Open-hardware power rail oscilloscope probe
You can save a lot of money on panels by designing the panels as double sided PCB's solid copper on both sides. The corner mounting holes as through holes with the OD of the throughole being close to
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Sam Reaves
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#2069
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Re: Open-hardware power rail oscilloscope probe
To revive an old thread, I wanted to give an update on the power rail probe project - I built out the prototype in October and spent the last few months characterising it. It works pretty well! The
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Patrick Coleman
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#2068
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Re: Budget RF lab equipment list
Unless you're applying to Harvard it seems :-) Morris (who was non-tenured)
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Morris Odell
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#2067
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Re: Budget RF lab equipment list
Tenure can also be based on the factor of having enough money that one can perform an universal gesture of love and kindness to the university. Especially effective when the finger is erected while
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Tam Hanna
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#2066
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Re: Budget RF lab equipment list
[email protected]> wrote: Tenure will be based on publications - not on YouTube videos. Dave
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Dr. David Kirkby, Kirkby Microwave Ltd
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#2065
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Re: Budget RF lab equipment list
When I referenced Youtube I was thinking of people like Hunter Adams of Cornell who is looking for a tenure track job. Lots of incentive to put his lectures on Youtube. Hunter is so good I watched
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Reginald Beardsley
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#2064
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Re: Budget RF lab equipment list
It is hard to replace a good instructor. However, it can be tough to figure out which schools have those good instructors. Most of my electronics knowledge is a result of the public library system.
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Steven Greenfield AE7HD <alienrelics@...>
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#2063
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Re: Budget RF lab equipment list
I very much agree with the comments on the SN ratio of YouTube but there are, thankfully, exceptions - IMO one of the best is Alan (W2AEW).? To me he seems to consistently provide good information in
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Harold Foster
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#2062
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