Electronics Design

adorable little shear

We sometimes put a bunch of test circuits on one PC board, and then have to slice them apart. We have a giant shear at...

8 comments posted 11mos

posted by jl

8 comments posted 11mos posted by jl

Re: Scientists just build a detector that could finally catch dark matter

> Scientists just built a detector that could finally catch dark matter > Date: > September 10, 2025 > Source: > Univer...

12 comments posted 11mos

posted by bill.sloman

12 comments posted 11mos posted by bill.sloman

Re: Sweat and food stains vanish under blue light

On Wed, 10 Sep 2025 06:38:55 GMT, Jan Panteltje snipped-for-privacy@comet.invalid wrote: >Sweat and food stains vanish...

13 comments posted 11mos

posted by legg

13 comments posted 11mos posted by legg

Re: Temperature sensing technologies

On Tue, 9 Sep 2025 13:22:23 -0700, Don Y snipped-for-privacy@foo.invalid wrote: >I'm looking to (ideally) settle on a s...

35 comments posted 11mos

posted by jl

35 comments posted 11mos posted by jl

Question regarding the identification of a component

Attention: fup2! Hello, In an older power supply unit for GM counter tubes, the high voltage (max. 1 kV) is generated b...

1 comments posted 11mos

posted by reinhard.zwirner

1 comments posted 11mos posted by reinhard.zwirner

Re: Light powered chip makes AI 100 times more efficient

> Light-powered chip makes AI 100 times more efficient > Researchers have developed a silicon chip that uses light with...

15 comments posted 11mos

posted by bill.sloman

15 comments posted 11mos posted by bill.sloman

Klopfenstein taper

https://www.microwaves101.com/encyclopedias/klopfenstein-taper Tapered transmission lines are fun. Most of the papers ar...

32 comments posted 11mos

posted by jl

32 comments posted 11mos posted by jl

new polymer caps

https://www.mouser.com/c/?marcom=113518709 Interesting. Replacement for tantalums but low ESR. 470uF 2VDC 9mOhm would b...

19 comments posted 11mos

posted by jl

19 comments posted 11mos posted by jl

Re: India will drive global economy with digital diamonds

I'd hoped that this meant that they were going to make their transistors by doping a diamond substrate, but it's just t...

3 comments posted 11mos

posted by bill.sloman

3 comments posted 11mos posted by bill.sloman

A good video about decoupling capacitors

https://www.youtube.com/watch?v=TpXvac1Y3h0 Summary: 4x 100nF is better than 100pF/1nF/10nF/100nF

46 comments posted 11mos

posted by klauskvik

46 comments posted 11mos posted by klauskvik

The Remarkable CSS555

The Remarkable CSS555 The CSS555 is a micropower programmable version of the 555 family of timer ICs. It operates at a...

37 comments posted 11mos

posted by g

37 comments posted 11mos posted by g

pulse decoder rotary dial telephone

Hi, I am looking for design a pulse decoder for old rotary dial telephone. I saw this: https://tinyurl.com/386mahsn I a...

4 comments posted 11mos

posted by l_umbe

4 comments posted 11mos posted by l_umbe

Will AI Kill This Group?

Fearless truth-seekers like Bill Sloman will have been delighted by the fact that I've been largely absent here of late...

63 comments posted 11mos

posted by cd6699

63 comments posted 11mos posted by cd6699

My first Kobo Touch reader died

https://photos.app.goo.gl/qWR1kVNFjcqDP8WT7 The battery, which is not the original, but a replacement bought from China...

14 comments posted 11mos

posted by robin_listas

14 comments posted 11mos posted by robin_listas

High resolution timer on STM32, tricks maybe

Hi I am working on an application where I need pico second timing in a power stage. My go to controller, the STM32G071...

27 comments posted 11mos

posted by klauskvik

27 comments posted 11mos posted by klauskvik