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Passive frequency divider

It's possible to accurately divide the frequency of an ac signal by powers of two using just diodes, resistors and capa...
22 comments posted 1w
posted by bp
22 comments posted 1w posted by bp

OPA955

https://www.ti.com/product/OPA955 They call this a TIA but it's really an opamp. Fast, low noise, at least above 10KHz.
3 comments posted 2w
posted by jl
3 comments posted 2w posted by jl

Local AI instances

Anyone played with any of the "Open" AI's on local hardware? Successes? Horror stories?
24 comments posted 2w
posted by blockedofcourse
24 comments posted 2w posted by blockedofcourse

+2V rail with an opamp

https://www.dropbox.com/scl/fi/s8by878zs7a7h4knhr7f4/R360_2V_rail.jpg?rlkey=wbkw49r4oxrute7iy6rmjy792&raw=1
19 comments posted 2w
posted by jl
19 comments posted 2w posted by jl

TDR

Gentlemen, Does anyone here have a dedicated TDR? I'd previously assumed they were only good for 'distance to fault' ap...
21 comments posted 2w
posted by cd
21 comments posted 2w posted by cd

invasive species

https://www.dropbox.com/scl/fi/0a0xerf8tfs9nmjzrj8jp/Dyno_Ducks.jpg?rlkey=gzzh9m2fiqly2wd56pwgpdlvl&raw=1 I think the dy...
4 comments posted 2w
posted by jl
4 comments posted 2w posted by jl

BLE support in phones

How ubiquitous is (or isn't!) this? Is there a general (temporal) cutoff point where its support is "expected" before wh...
20 comments posted 2w
posted by blockedofcourse
20 comments posted 2w posted by blockedofcourse

Rack "features"

I rescued an equipment rack, today, and wonder if it may have been assembled incompletely (likely by grad students; I'v...
1 comments posted 2w
posted by blockedofcourse
1 comments posted 2w posted by blockedofcourse

spacex è un cesso

http://www.asps.it/rott1.png
7 comments posted 2w
posted by user2039
7 comments posted 2w posted by user2039

diamonds, finally

https://www.microwavejournal.com/articles/45994-element-six-and-orbray-accelerate-wafer-scale-single-crystal-diamond-fo...
3 comments posted 2w
posted by jl
3 comments posted 2w posted by jl

UHF laser modulation

Hi, All, One of my customers is building a quantum magnetometer using nitrogen vacancies in a small diamond. It is a fl...
13 comments posted 3w
posted by pcdhSpamMeSenseless
13 comments posted 3w posted by pcdhSpamMeSenseless