Electronics Design

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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

those coupled drum core inductors

https://www.dropbox.com/scl/fi/cd8gxmlrar3kvv3iz36xe/Mu_twin.jpg?rlkey=dvl8e7fbtjnzz3l9q9urkyyfn&raw=1...
5 comments posted 1yr
posted by invalid_unparseable
5 comments posted 1yr posted by invalid_unparseable

Pawsey stub velocity

I've been mucking about with a design which includes a Pawsey stub. Some sources say the velocity factor of the feeder...
10 comments posted 1yr
posted by liz
10 comments posted 1yr posted by liz

hefty data sheet

https://www.ti.com/lit/pdf/spruim2 That's 10419 pages. Has anyone seen a bigger data sheet? And what's a spruim?
10 comments posted 1yr
posted by jl
10 comments posted 1yr posted by jl

half and full bridge chips

I'm designing some products that need 48-volt half or full-bridge drivers. Not just gate drivers but the whole thing. W...
2 comments posted 1yr
posted by invalid_unparseable
2 comments posted 1yr posted by invalid_unparseable

cyberhorrors

https://www.dropbox.com/scl/fi/63fp0yvvuzfs0tub1qoj9/Cyber_Cabin.jpg?rlkey=mbh9w36rge7ooxcl00pahecea&raw=1 Can you put...
7 comments posted 1yr
posted by invalid_unparseable
7 comments posted 1yr posted by invalid_unparseable

two drums

https://www.dropbox.com/scl/fo/qpfhkvbfig7elysx78lq3/ALGqgMaRq1tx8aIiN3p1TfM?rlkey=36bcqfdb9di22ko48j89vocut&dl=0 If I...
14 comments posted 1yr
posted by invalid_unparseable
14 comments posted 1yr posted by invalid_unparseable

rp2040 a2d?

Anyone have experience using the a2d in an RP2040? I've heard some negative opinions, would like to check against actua...
14 comments posted 1yr
posted by wwm
14 comments posted 1yr posted by wwm

Quarter-wave whip earth plane

I've made a magnetic base for a quarter wave whip aerial; different length rods can be screwed onto it for the 2-metre...
26 comments posted 1yr
posted by liz
26 comments posted 1yr posted by liz

nonpolarized caps

I need some nonpolarized caps, ballpark 10uF or so, +-50 volts. There are some nonpolar aluminums. Any experience or ad...
6 comments posted 1yr
posted by invalid_unparseable
6 comments posted 1yr posted by invalid_unparseable

dumper circuit

I'll have an isolated class-D amplifier powered by a dc/dc converter from my big 48 volt supply. Simple push-pull, tran...
5 comments posted 1yr
posted by jl
5 comments posted 1yr posted by jl

boom!

https://emrtc.nmt.edu/media/pdf/EMRTCPromotionalBrochure.pdf That's cool, a little university department with a 40 squar...
10 comments posted 1yr
posted by jl
10 comments posted 1yr posted by jl