Electronics Design

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OT: Ukraine

Gentlemen, Please let's try to bear in mind that one of Trump's big election pledges was to wash America's hands of any...
14 comments posted 1yr
posted by cd
14 comments posted 1yr posted by cd

OT: Greenland

Well, I thought DT was joking about seizing Greenland, but it appears he's serious! That's quite a bold move to say the...
17 comments posted 1yr
posted by cd
17 comments posted 1yr posted by cd

tiny dc/dc

Check out UCC33420. It's a tiny cheap isolated dc/dc converter. It switches at 64 MHz!
26 comments posted 1yr
posted by jl
26 comments posted 1yr posted by jl

mountable power ports

Hi, my project box is a large tin cookie box. I need to bring in +15V, -15V, and GND lines from my external bipolar pow...
24 comments posted 1yr
posted by christopher
24 comments posted 1yr posted by christopher

KA7500 vs TL494

Chinese commodity power supplies have tended to use recognizable configurations from times gone by. In doing so, it's e...
16 comments posted 1yr
posted by legg
16 comments posted 1yr posted by legg

PCB version control

How do you version control your PCBs these days? I'm at the point I need to implement a more consistent schema for hard...
21 comments posted 1yr
posted by user
21 comments posted 1yr posted by user

relay board

Here's another PCB: https://www.dropbox.com/scl/fi/yxqdj418jx1ttuusqqehg/P946_Relays_A11.jpg?rlkey=hxshyt4mze59k31xpnsi...
8 comments posted 1yr
posted by invalid_unparseable
8 comments posted 1yr posted by invalid_unparseable

Wideband ammeter

How about thermal imaging a surface-mount resistor?
15 comments posted 1yr
posted by invalid_unparseable
15 comments posted 1yr posted by invalid_unparseable

nice layout

https://regmedia.co.uk/2023/03/09/dutch_shutterstock.jpg?x=954&y=477&crop=1
12 comments posted 1yr
posted by invalid_unparseable
12 comments posted 1yr posted by invalid_unparseable

Binocular choke extras

I've just taken delivery of a couple of ferrite 'binocular' choke cores; each one came with two thinwalled metal tubes...
25 comments posted 1yr
posted by liz
25 comments posted 1yr posted by liz

50 ohm termination

Can I get away with terminating the far end of a transmission line or do I need a series resistor at the source and a pa...
24 comments posted 1yr
posted by toaster
24 comments posted 1yr posted by toaster

Re: Too much time on their hands!

On Mon, 17 Mar 2025 05:25:29 -0700, Don Y snipped-for-privacy@foo.>I stumbled on a nice little "tin" that I figured wou...
14 comments posted 1yr
posted by invalid_unparseable
14 comments posted 1yr posted by invalid_unparseable

remember covid?

https://archive.is/CQzbl
21 comments posted 1yr
posted by invalid_unparseable
21 comments posted 1yr posted by invalid_unparseable