Electronics Design

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Driving Lasers

Gentlemen, I have a bunch of red lasers I bought a while ago which perform best at 45mA. So I initially thought I'd kno...
17 comments posted 7mos
posted by cd
17 comments posted 7mos posted by cd

Re: SAS v SATA

SATA has a slot between power and signal connectors. SAS doesn't have that slot. SATA-only receptacle has a protrusion...
4 comments posted 8mos
posted by ksi
4 comments posted 8mos posted by ksi

Climate Change

For those interested in the subject: https://retractionwatch.com/2025/12/03/authors-retract-nature-paper-projecting-high...
1 comments posted 8mos
posted by ehsjr
1 comments posted 8mos posted by ehsjr

button car

https://www.dropbox.com/scl/fi/4xwcu9xdmp32on9r09frb/Button_Car.jpg?rlkey=ajtu62xk8ray4rdp4bptcii8y&raw=1 John Larkin Hi...
0 comments posted 8mos
posted by jl
0 comments posted 8mos posted by jl

surface mount threaded insert

www.keyelco.com/userAssets/file/K75p84.pdf P/N 4929. That solves a nasty problem we've been fighting. I wonder how much...
4 comments posted 8mos
posted by jl
4 comments posted 8mos posted by jl

F432BA Thrust

Thrust test of a remote-controlled, reactionless PNN F432BA prototype on a beam scale. http://www.asps.it/spintapnnalto...
0 comments posted 8mos
posted by user2039
0 comments posted 8mos posted by user2039

Carbon monoxide sensor

My carbon monoxide alarm unit went out-of-date today. As a result, the piezo buzzer kept beeping every minute, and the...
14 comments posted 8mos
posted by Jeff
14 comments posted 8mos posted by Jeff

LM386 minimum count circuit

Hi, I had some LM386 chips on hand, and I downloaded the LM386 Low Voltage Audio Power Amplifier data sheet (Rev C). ht...
22 comments posted 8mos
posted by christopher
22 comments posted 8mos posted by christopher

Rockwell PPS-4 documents needed. MM7X stuff

Hi Folks, I've done the online searches, and know that bitsavers.org (Hi Al K. if you are here) has a reasonable amount...
6 comments posted 8mos
posted by jrr
6 comments posted 8mos posted by jrr

bit flips?

https://www.bbc.com/future/article/20251201-how-cosmic-rays-grounded-thousands-of-aircraft This makes no sense from a b...
10 comments posted 8mos
posted by jl
10 comments posted 8mos posted by jl

Rechargeable 1.5V lithium batteries

Rechargeable 1.5V lithium batteries are complicated animals. Not a battery, as such, so don't rely on standard battery...
10 comments posted 8mos
posted by legg
10 comments posted 8mos posted by legg

OT? fiber optic question

Greetings, Just musing here. How might I couple a fiber optic cable to the optical window on a Lidar chip? Wondering if...
16 comments posted 8mos
posted by wwm
16 comments posted 8mos posted by wwm

Re: Robot stuns crowd after shocking onstage review

> john lark>> >> In the modern world, we have lots of smooth level surfaces, which is >> why we use wheels. > > They ha...
0 comments posted 8mos
posted by fizzbintuesday
0 comments posted 8mos posted by fizzbintuesday