Electronics Design

43706 Threads Posts
to

economic absurdities

https://wolfstreet.com/2021/12/22/end-of-easy-money-global-tightening-in-full-swing-fed-promises-to-wake-up-in-time/ Th...
46 comments posted 4yrs
posted by jlarkin
46 comments posted 4yrs posted by jlarkin

Low level AC measuremets with HP 34401

Hello, Due to the used RMS converter low level AC measurememts with this DMM are less precise to incorrect. There is a...
11 comments posted 4yrs
posted by reinhard.zwirner
11 comments posted 4yrs posted by reinhard.zwirner

Corona Update 19, Hyper Inflation Survival Guide

Let's first explain the cause of the hyper inflation: 1. In the 1960's the vietnam war started, the USA got involved, h...
1 comments posted 4yrs
posted by skybuck2000
1 comments posted 4yrs posted by skybuck2000

Substitute LM2676 simple switcher

Hi LM2676S-ADJ lead-free are hard to get now. Has anyone tried substituting LM2670 series with success? I am looking at...
4 comments posted 4yrs
posted by geoffjunkster
4 comments posted 4yrs posted by geoffjunkster

unlocked cell phones

Anyone know of a good source for an "unlocked" cell phone, a basic type along the lines of an "LG Classic Flip". I've b...
0 comments posted 4yrs
posted by ht
0 comments posted 4yrs posted by ht

review this battery charger

What do you folks think about this gem: https://www.youtube.com/watch?v=cpaWCedoptA I like the special high reluctance t...
30 comments posted 4yrs
posted by presence
30 comments posted 4yrs posted by presence

OT: Fiery Crash On 605 Freeway in LA - Tesla

Fiery Crash On 605 Freeway in LA - Tesla not involved. How did this happen that gasoline laden vehicles could crash and...
17 comments posted 4yrs
posted by gnuarm.deletethisbit
17 comments posted 4yrs posted by gnuarm.deletethisbit

Curious

https://tinyurl.com/y63rsseg Cool book. There's a lot of stuff about ideas and such, and a lot of good references.
63 comments posted 4yrs
posted by jlarkin
63 comments posted 4yrs posted by jlarkin

Simple audio amp design

Greetings, gentlemen, I have a vintage MW/LW/SW 12V battery-powered radio I picked up recently at a yard sale. Being 50...
98 comments posted 4yrs
posted by cd
98 comments posted 4yrs posted by cd

WWVB Receiver

I am making a WWVB receiver to compare the diurnal phase shift with GPS. Ferrite loop antennas are available on Amazon,...
68 comments posted 4yrs
posted by nospam
68 comments posted 4yrs posted by nospam

Boolean/logic gate operations/sec.

Here is a nice boolean/logic gate operation/sec challenge for you. Your mission/the goal is to execute as many boolean/...
0 comments posted 4yrs
posted by skybuck2000
0 comments posted 4yrs posted by skybuck2000

Laser marking/directing system

Hi I am working on a project, just for my own business I need a laser marking system, that can show a cross hair or oth...
53 comments posted 4yrs
posted by klauskvik
53 comments posted 4yrs posted by klauskvik