Hobby Electronics Basics

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How is the mains power filtered?

I was looking at the power from my generator and there are of course harmonics in the output. I don't know much about h...
5 comments posted 10yrs
posted by etpm
5 comments posted 10yrs posted by etpm

Any PicoScope users?

I use a PC oscilloscope from UK company Pico Technology. An old model called ADC-200 which is no longer supported but m...
2 comments posted 10yrs
posted by me
2 comments posted 10yrs posted by me

AoE3 D-flips and glitches

As part of reintroducing myself to digital electronics, I've been reading chapter 10 of AoE3. My question regards the f...
25 comments posted 10yrs
posted by gherold
25 comments posted 10yrs posted by gherold

~1 second pulser

Hi all, I mentioned this digital question on SED. (It's really not much of a hair ball...) The goal is to make precisio...
13 comments posted 10yrs
posted by gherold
13 comments posted 10yrs posted by gherold

AD7793 Again

The FAQ for this ADC is sort of terrifying: http://www.analog.com/media/en/technical-documentation/frequently-asked-que...
0 comments posted 10yrs
posted by jjlarkin
0 comments posted 10yrs posted by jjlarkin

Hakko FX888D-23BY

I think this is an updated Hakko soldering station. Does anyone have it and have they cheapened anything to make it not...
3 comments posted 10yrs
posted by nojunk
3 comments posted 10yrs posted by nojunk

Help with crazy motor project please

Greetings All, I am a machinist and in my office is an old lathe that is in pretty good shape. When new, about 110 year...
25 comments posted 10yrs
posted by etpm
25 comments posted 10yrs posted by etpm

AN: Basic OpAmp Output Stage Spice Model Posted to my Website

Basic OpAmp Output Stage Spice Model... Passes load current to proper Voltage Rail... No Voltage Bounds, No Current Lim...
6 comments posted 10yrs
posted by To-Email-Use-The-Envelope-Icon
6 comments posted 10yrs posted by To-Email-Use-The-Envelope-Icon

Ramsey Electronics out of the kit business

I saw a notice yesterday that Ramsey Electronics has dropped the kit business, focusing on test equipment (which appare...
7 comments posted 10yrs
posted by et472
7 comments posted 10yrs posted by et472

Currents through cables

Is it possible for two different AC currents to flow in opposite directions through a single conductor at the *same* ti...
19 comments posted 10yrs
posted by cbx
19 comments posted 10yrs posted by cbx

Survey: Does Anyone Here Use TopSpice Simulator?

Survey: Does Anyone Here Use TopSpice Simulator? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations |...
5 comments posted 10yrs
posted by To-Email-Use-The-Envelope-Icon
5 comments posted 10yrs posted by To-Email-Use-The-Envelope-Icon

The purpose of the Manhattan style to make PCB

Nowadays it is possible to make PCB with software so what is the purpose or objective to make Manhattan style PCB. Thank...
8 comments posted 10yrs
posted by chriswilliams65
8 comments posted 10yrs posted by chriswilliams65

Question about diodes - which one should I use?

I'm right now attempting to reverse-engineer a computer memory card. It is basically a SRAM card with a battery backup....
5 comments posted 10yrs
posted by groink1
5 comments posted 10yrs posted by groink1

Motor

Hi, I am controlling a DC motor via micro. DC motor draws 2A at full load and r equires 12V. Motor needs to move 30 deg...
10 comments posted 10yrs
posted by jsscshaw88
10 comments posted 10yrs posted by jsscshaw88