Hobby Electronics Basics

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Blowhards Sailing Downwind

There sure seems to be a lot of people in need of remedial reading-for-content involved in the thread about sailing dow...
73 comments posted 16yrs
posted by none
73 comments posted 16yrs posted by none

ltspice model for a kettle element !

Anyone like to suggest some improvements to my simulation of a relay switching a kettle element? I guessed at all value...
5 comments posted 16yrs
posted by nobody
5 comments posted 16yrs posted by nobody

Digital Capacitor 1 Farad

I bought a digital 1 farad cap (ICBM-7244CRP) at a swap meet for $15 thinking I could sell it on ebay for a $30 or more...
8 comments posted 16yrs
posted by wrongaddress
8 comments posted 16yrs posted by wrongaddress

Portable Oscilloscope

The markings on the housing of the 120 / 240 v ac Protek P-3502C don't say anything about power consumption, only to us...
10 comments posted 16yrs
posted by BretCahill
10 comments posted 16yrs posted by BretCahill

flashlight circuit

why the hell does my flashlight go dim, but when I knock it hard it gets bright again? What can I do to fix this? I don'...
9 comments posted 16yrs
posted by siccusproprius
9 comments posted 16yrs posted by siccusproprius

Scissors Appear On Plot On LT SPICE

Does this mean the circuit analysis requires too much computing power? It would be nice to get accurate phase angles and...
1 comments posted 16yrs
posted by Bret_E_Cahill
1 comments posted 16yrs posted by Bret_E_Cahill

Isopropyl Alcohol for Cleaning Flux

In one of the posts about solder, somebody mentioned CVS Drug Store for 91% isopropyl alcohol. I just called a CVS, it'...
33 comments posted 16yrs
posted by none
33 comments posted 16yrs posted by none

Solder flux and resistance

When testing a high impedance board (up to 1 G ohm) I found that the SMD 0805 10 Meg ohm resistors measured only 6 meg...
6 comments posted 16yrs
posted by gherold
6 comments posted 16yrs posted by gherold

Ohms law power problem

Using a 12 ohm load and 12 volt supply, what is the power gain when the voltage is raised to 12.1 volts? Considering th...
39 comments posted 16yrs
posted by wrongaddress
39 comments posted 16yrs posted by wrongaddress

microwave

why microwave applications need devices with negative resistance?
9 comments posted 16yrs
posted by rcsatheeshkumar
9 comments posted 16yrs posted by rcsatheeshkumar

need some help designing a Sinewave inverter

I would like to build a pure sinewave inverter and need some help in designing & component selection. What ? A 100-200...
14 comments posted 16yrs
posted by mahesh_nkr06
14 comments posted 16yrs posted by mahesh_nkr06

Surge Protector - how they work?

Hi, it is the thunder season here in Finland so I got interested how these surge protectors are built - which say they...
9 comments posted 16yrs
posted by klaine8
9 comments posted 16yrs posted by klaine8

The ideas of BASiCS?

Electronics & TheorY - Go, hand in hand.
1 comments posted 16yrs
posted by bcon1
1 comments posted 16yrs posted by bcon1

Toner transfer Paper-update

A while ago their was a thread about paper used for PCB toner transfer method using a laser toner. The main grudge with...
9 comments posted 16yrs
posted by spam
9 comments posted 16yrs posted by spam

Tips on DMM for a newbie?

Can you spare any tips on DMMs for newbies? Thanks in advance, Rui Maciel
24 comments posted 16yrs
posted by rui.maciel
24 comments posted 16yrs posted by rui.maciel