Electronics Design

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yikes

We have people working at home, but some wretched soul has to come in to work and support them. Me. I finally got the l...
38 comments posted 6yrs
posted by jlarkin
38 comments posted 6yrs posted by jlarkin

Transmission Gate FF

The TI SN74HCS72 has a diagram showing the internal transmission gate struc ture and I must be misinterpreting how it w...
3 comments posted 6yrs
posted by gnuarm.deletethisbit
3 comments posted 6yrs posted by gnuarm.deletethisbit

What's this called and where do I get it.

> https://www.dropbox.com/s/c18rqvccmjc3cvp/Adapter%20with%20SMA%20connectors.jpg?dl=0 Mikek
4 comments posted 6yrs
posted by nojunk
4 comments posted 6yrs posted by nojunk

My Covid-19 project

I posted my RIS-787 schematic recently in the thread, "Abiding by the USB 100mA, 500mA rule" and reader Rick C caught a...
32 comments posted 6yrs
posted by winfieldhill
32 comments posted 6yrs posted by winfieldhill

Finding LTspice Models

LTspice is a nice program... well, it's ok in many respects and great in ot hers. But it can be a PITA to find models f...
13 comments posted 6yrs
posted by gnuarm.deletethisbit
13 comments posted 6yrs posted by gnuarm.deletethisbit

What is this called?

This attachment allows a cable to pass through a panel, and clamp the cable into position. https://www.dropbox.com/s/6o...
61 comments posted 6yrs
posted by sylvia
61 comments posted 6yrs posted by sylvia

Superhet & SuperSpice & Nostalgia

All.... A reminder that SS was freebeed a while ago...just download the current install. For those real analog enthusia...
1 comments posted 6yrs
posted by kevinRemovAT
1 comments posted 6yrs posted by kevinRemovAT

Repair/replace 7CT1N?

Mine quit - no vertical output. Ideas? quotes? Etc? Thanks.
21 comments posted 6yrs
posted by robertbaer
21 comments posted 6yrs posted by robertbaer

excellent virus rant

https://www.breitbart.com/europe/2020/05/02/blitz-spirit-hardly-most-britons-still-too-scared-to-leave-home/ Good obser...
23 comments posted 6yrs
posted by jlarkin
23 comments posted 6yrs posted by jlarkin

Conductive ink for PCB

Hello, I'm new here. I found the group because I was reading this topic://groups.google.com/forum/#!topic/sci.electroni...
9 comments posted 6yrs
posted by droining
9 comments posted 6yrs posted by droining

USB to TP4056 charger - why is the diode there?

This is the relevant part of the schematic of an 18650 battery charger and boost converter (to 5V) module: https://i.po...
4 comments posted 6yrs
posted by waybackNO584SPAM44
4 comments posted 6yrs posted by waybackNO584SPAM44

Half-bridge/gate drive heeeeelp!

Here's the situation in simplified schematic form, generate a high-efficiency sine wave at around 3-5MHz putting out ab...
31 comments posted 6yrs
posted by user
31 comments posted 6yrs posted by user