Electronics Design

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Stainless steel stock pot

I wonder if a stainless steel stock pot woulr be a useful RFI shield for low level measurements, such as phase noise me...
22 comments posted 4yrs
posted by spamme
22 comments posted 4yrs posted by spamme

copper crisis?

https://gizmodo.com/a-copper-shortage-is-likely-coming-for-the-energy-trans-1849178385 Motor and transformer design are...
67 comments posted 4yrs
posted by jlarkin
67 comments posted 4yrs posted by jlarkin

Bad Chargers

Recently, i met a Bolt driver with exactly this problem, while the other charger at the same site won't work at all. At...
24 comments posted 4yrs
posted by edward.ming.lee
24 comments posted 4yrs posted by edward.ming.lee

custom AlN insulator

http://ryceramic.ruixiangmc.com/ made this for us. https://www.dropbox.com/sh/un3la6swtaa8d1c/AABaNXadReMeGCBk7mz6QdIta...
6 comments posted 4yrs
posted by jlarkin
6 comments posted 4yrs posted by jlarkin
4 comments posted 4yrs
posted by jlarkin
4 comments posted 4yrs posted by jlarkin

Electronic Design Checklist

Back in the day when I did a lot of digital and analog circuit design, I developed a checklist that was used by design...
17 comments posted 4yrs
posted by jjhudak4
17 comments posted 4yrs posted by jjhudak4

lidar chip

https://www.digikey.com/en/products/detail/stmicroelectronics/VL53L4CXV0DH-1/16123777 I think that gets really cheap in...
76 comments posted 4yrs
posted by jlarkin
76 comments posted 4yrs posted by jlarkin

mystery rackmount kit

I'm trying to guess what these may be: I'd initially thought they might be disk shelves owing to the height (about 4U?)...
24 comments posted 4yrs
posted by blockedofcourse
24 comments posted 4yrs posted by blockedofcourse

Microwave Oven Layout

I've seen microwave ovens designed for small spaces. None of them are actually so good, because they put the control pa...
37 comments posted 4yrs
posted by gnuarm.deletethisbit
37 comments posted 4yrs posted by gnuarm.deletethisbit

More about chinese wallwarts...

Hardly I mentioned bad elcos in wallwarts or the next one happened I bought this DVB-S2 satellite receiver box last yea...
12 comments posted 4yrs
posted by pNaonStpealmtje
12 comments posted 4yrs posted by pNaonStpealmtje

film cap test

We want some biggish film caps to use in some LC filters for a couple of switching power things, so we got some to test...
59 comments posted 4yrs
posted by jlarkin
59 comments posted 4yrs posted by jlarkin

Winsource Earns a D+

I found a part I needed at Winsource at a better price than the $10 I'm seeing everywhere else. The order was too large...
4 comments posted 4yrs
posted by gnuarm.deletethisbit
4 comments posted 4yrs posted by gnuarm.deletethisbit

OT: Fireworks

Just a reminder that the possession or use of fireworks in the state of Massachusetts is illegal without an appropriate...
22 comments posted 4yrs
posted by user
22 comments posted 4yrs posted by user

home labs

https://www.signalintegrityjournal.com/articles/2045-home-labs-of-the-stars (I don't have a home lab. I do have a power...
6 comments posted 4yrs
posted by jlarkin
6 comments posted 4yrs posted by jlarkin

flat plate convection cooling calcs

https://thermal.mayahtt.com/tmwiz/convect/forced/fp-isot/fp-isot.htm is a calculator for forced-air heat transfer of a...
3 comments posted 4yrs
posted by jlarkin
3 comments posted 4yrs posted by jlarkin