Electronics Design

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Oh no...

Lm555cn 104 week lead time, pdip https://www.mouser.com/ProductDetail/Texas-Instruments/LM555CN-NOPB?qs=QbsRYf82W3GjZpQL...
4 comments posted 3yrs
posted by martin_riddle
4 comments posted 3yrs posted by martin_riddle

OT, right?

I sometimes listen to NPR (the US public radio network) while I'm driving to work. It's an equal mix of interesting, bo...
18 comments posted 3yrs
posted by jlarkin
18 comments posted 3yrs posted by jlarkin

Creating a high ratio transformer

Newsreader problem since updating Thunderbird, so GG until I get thay solved. In a thread about a low impedance transfo...
6 comments posted 3yrs
posted by amdx62
6 comments posted 3yrs posted by amdx62

Factor PFC Into Your Power-Supply Design

Factor PFC Into Your Power-Supply Design pdf for download, some new chips:ADP1047 and ADP1048:...
32 comments posted 3yrs
posted by pNaonStpealmtje
32 comments posted 3yrs posted by pNaonStpealmtje

Ukraine: North Stream 3?

Large sections of NS 1 & 2 need to be replaced. Practically the entire section from Russia coast to Germany coast will...
67 comments posted 3yrs
posted by edward.ming.lee
67 comments posted 3yrs posted by edward.ming.lee

Any hackers in here? Hack a Google Home?

Just wondering if I can change the main program in a Google Home, or is it hard coded? It must allow updates to the soft...
93 comments posted 3yrs
posted by CK1
93 comments posted 3yrs posted by CK1

Crap Flash Drives

I thought I would give Amazon a try and see if the USB flash drives sold there are any better than the crap sold on eBa...
21 comments posted 3yrs
posted by gnuarm.deletethisbit
21 comments posted 3yrs posted by gnuarm.deletethisbit

decade power supply

In this case, "decade" means ten outputs. https://www.dropbox.com/s/3vt6uv92j07t9el/Pwr_Oct13_1.jpg?raw=1 https://www.d...
19 comments posted 3yrs
posted by jlarkin
19 comments posted 3yrs posted by jlarkin

Moscaps? Any ideas?

Hi, Anyone care to explain what the function is of the 2 FETS Q1 and Q2 in this Fluke calibrator and what might be the...
13 comments posted 3yrs
posted by Chipbee40_SpamNo
13 comments posted 3yrs posted by Chipbee40_SpamNo

TI parts in LT Spice

TI has encrypted Pspice models for many of their parts, but I can't persuade LT Spice to run the switchers I want to us...
17 comments posted 3yrs
posted by jlarkin
17 comments posted 3yrs posted by jlarkin

parts!

This is crazy. When we can't get parts, we design around what we can find and buy a reel of 3000. Or so. Whatever packa...
15 comments posted 3yrs
posted by jlarkin
15 comments posted 3yrs posted by jlarkin

Simple lab amps

For some client work involving entropy sources for cryptography (*), I needed a couple of 1-nV-class instrument amps (*...
7 comments posted 3yrs
posted by pcdhSpamMeSenseless
7 comments posted 3yrs posted by pcdhSpamMeSenseless

Solar inverters

Can anyone explain how solar power gets injected back into the incoming mains supply ?In the UK, the normal 'simple' in...
8 comments posted 3yrs
posted by kraken.sankey
8 comments posted 3yrs posted by kraken.sankey