Hobby Electronics Basics

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Open Challenge

Fix ? it ? Find it - & I will not pay for it if it's not Right? Just a Question for Me? Any electronics Question(s) ? w...
6 comments posted 19yrs
posted by quark5
6 comments posted 19yrs posted by quark5

dc motors questions

Hello- I am working on an electric skateboard project, and am having trouble with a few things. I have 2 12V motors rat...
2 comments posted 19yrs
posted by davittlaptop
2 comments posted 19yrs posted by davittlaptop

Tracking filters

Can anybody explain to me the basic operation of tracking filter circuit? Or please describe the best link to start lear...
2 comments posted 19yrs
posted by aungkokothet
2 comments posted 19yrs posted by aungkokothet

how to get started with spice

greetings gurus i've been trying for some time now (though admittedly off-and-on) to self-learn basic electronics, and...
3 comments posted 19yrs
posted by sean_mcilroy
3 comments posted 19yrs posted by sean_mcilroy

LED Questions (just two: )

Ok - since one person did offer here as a good place to ask some of my ignorance to knowledge questions concering my LE...
9 comments posted 19yrs
posted by chull13
9 comments posted 19yrs posted by chull13

paralleing bridge rectifiers

Anyone see any issues with paralleling two or more bridge rectifiers to increase the total current capacity and reduce e...
21 comments posted 19yrs
posted by Jon_Slaughter
21 comments posted 19yrs posted by Jon_Slaughter

PIC speark driver

I'm generating a 1K Hz "tone" using an output pin on a PIC microcontroller. I'd like to increase the volume. I can (and...
9 comments posted 19yrs
posted by news
9 comments posted 19yrs posted by news

anyone know a good voltage distribution circuit?

Hi I'm building an instrument with several circuits in it. I want to run them all off one power supply rather than seve...
4 comments posted 19yrs
posted by carbohydrat.protein
4 comments posted 19yrs posted by carbohydrat.protein

Homebrew Electronic Fluorescent Starter

Could a SIDAC be used instead of the standard mechanical glow bottle starter? I tried a K1200E sidac (120V breakover) w...
3 comments posted 19yrs
posted by Ejohnson1486
3 comments posted 19yrs posted by Ejohnson1486

Silly power loss question

I am PWMing a solar panel output or open circuit 36V to charge 2 lead acid batteries in series to 27.6V and I am trying...
4 comments posted 19yrs
posted by nospam
4 comments posted 19yrs posted by nospam

P channel power mosfet IRF9540 or similar

What happens if I put a bigger negative Vgs on this that is specified on the datasheet?, I have a convenient -25V to pu...
15 comments posted 19yrs
posted by nospam
15 comments posted 19yrs posted by nospam

Voltage buffer

In a circuit I have DC signal somewhere around 10V-14V. This I would like to use as input for a load of 13kO. However, t...
5 comments posted 19yrs
posted by grubertm
5 comments posted 19yrs posted by grubertm

VU meter

I have found an audio level meter in this website as follows http://www.4qdtec.com/avu.html I need some help to underst...
16 comments posted 19yrs
posted by hc04
16 comments posted 19yrs posted by hc04

First post: best place for this?

(Earilier posted in .design - moved here by recommendation.) Many moons ago, I was an electronics repairman in the mili...
5 comments posted 19yrs
posted by prof_ofwhat
5 comments posted 19yrs posted by prof_ofwhat