Electronics Design

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Low Noise Direct Coupled Preamp

A number of designs exist of preamplifiers to measure power supply, zener, LED, and other noise sources. These generall...
85 comments posted 5yrs
posted by spam
85 comments posted 5yrs posted by spam

Microwave and Millimeter Wave Power Beaming

Career grifters are at it again. Can't believe someone thought this might have come in handy in Texas. Convoluted horse...
2 comments posted 5yrs
posted by bloggs.fredbloggs.fred
2 comments posted 5yrs posted by bloggs.fredbloggs.fred

cool cell division animation

https://www.youtube.com/watch?v=X_tYrnv_o6A I'm still astounded that that machinery builds itself. -- John Larkin Highl...
21 comments posted 5yrs
posted by jjlarkin
21 comments posted 5yrs posted by jjlarkin

GM Bolt battery problem

Easy fix: just add 10% more battery cells to the bolt and still limit it to 90%. Just don't tell customers about the ad...
15 comments posted 5yrs
posted by edward.ming.lee
15 comments posted 5yrs posted by edward.ming.lee

A letter from the army

A letter from the army just received Installed and are going to test new SMART-L radar exactly 1km from here wants feed...
61 comments posted 5yrs
posted by pNaOnStPeAlMtje
61 comments posted 5yrs posted by pNaOnStPeAlMtje

windows powercfg

Trying to use windows powercfg command prompt. C:\Windows\system32>powercfg /batteryreport gets Invalid Parameters -- t...
8 comments posted 5yrs
posted by legg
8 comments posted 5yrs posted by legg

10 breakthrough technologies of 2021:

Messenger RNA vaccines. The two most effective vaccines against the coronav irus are based on messenger RNA, a technolo...
6 comments posted 5yrs
posted by bloggs.fredbloggs.fred
6 comments posted 5yrs posted by bloggs.fredbloggs.fred

Audio and interference from ?electronics?

https://www.nasa.gov/press-release/nasa-s-mars-perseverance-rover-provides-front-row-seat-to-landing-first-audio I was...
5 comments posted 5yrs
posted by pNaOnStPeAlMtje
5 comments posted 5yrs posted by pNaOnStPeAlMtje

Starlink

Just had an email saying I can sign up for Starlink B/band. Hardware -- This email has been checked for viruses by Avast...
31 comments posted 5yrs
posted by kraken.sankey
31 comments posted 5yrs posted by kraken.sankey

Harddisk Density vs Data Retention Time ???

Question: Does the Data Retention Time of a magnetic harddisk decrease as it's magnetic density increases ?!? My hypoth...
26 comments posted 5yrs
posted by skybuck2000
26 comments posted 5yrs posted by skybuck2000

*Whew* BEOS 3 manuscript submitted

Hi, all, Finally got all the slicing and dicing done this evening. Hopefully it'll be out sometime this summer. It's al...
21 comments posted 5yrs
posted by pcdhSpamMeSenseless
21 comments posted 5yrs posted by pcdhSpamMeSenseless

Amateur electronics in danger due to lack of DIP ICs

The amount of integrated circuits with real pins on them, being capable of stuffed into a "breadboard", is rapidly decr...
209 comments posted 5yrs
posted by pyroartist.dw
209 comments posted 5yrs posted by pyroartist.dw

Drive speakers with motor bridge

Trying to drive a speaker at some power level without burning a bunch of power in an A or AB amp is hard to do with dis...
45 comments posted 5yrs
posted by gnuarm.deletethisbit
45 comments posted 5yrs posted by gnuarm.deletethisbit