Hobby Electronics Basics

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FCC Rule: Big brother watching?

Hi all, I just installed a new PC for a client today (here in the US) and noticed that there was a piece of paper with...
17 comments posted 20yrs
posted by sjb
17 comments posted 20yrs posted by sjb

9V LCD FlashLight

Anyone seen a schematic for those little clip on flashlight that simply clips on a 9V battery? I can certainly build th...
3 comments posted 20yrs
posted by james.douglas
3 comments posted 20yrs posted by james.douglas

Resistive tape

Hello, Anybody can tell me where I can buy resistive tape. Any code numbers at Digikey. I do not mean electrical tape....
12 comments posted 20yrs
posted by lerameur
12 comments posted 20yrs posted by lerameur

the moral of the story

I came into posession of an in-line oil heater sold for heating vegetable oil. Turns out it has a negative temperature...
2 comments posted 20yrs
posted by kellrobinson
2 comments posted 20yrs posted by kellrobinson

Newbie: Zerner diode voltage regulator ?

Hi, I'm self teaching myself electronics as a hobby so I don't have an instructor to ask simple questions of so please...
9 comments posted 20yrs
posted by hdjim69
9 comments posted 20yrs posted by hdjim69

grounding to gas lines

Could someone please direct me to a source of information that explains the obvious reasons why we don't ground to gas...
4 comments posted 20yrs
posted by tengolasuerte
4 comments posted 20yrs posted by tengolasuerte

Jacobs Ladder

Hi, I hope you don't mind me posting this here as I guess technically it's not electronics... I'm in the UK and would l...
21 comments posted 20yrs
posted by mqiqcqhqaqeqlqhqiqmqsq
21 comments posted 20yrs posted by mqiqcqhqaqeqlqhqiqmqsq

wireless button project

Hello, I was wondering if anyone in here might know how I might be able to control an analog switch with a wireless but...
24 comments posted 20yrs
posted by panfilero
24 comments posted 20yrs posted by panfilero

Circuit Diagram

Hey I am looking for a free program on circuit drawing to do a home? Thanks. Kev
13 comments posted 20yrs
posted by kev
13 comments posted 20yrs posted by kev

Family project - Buiding ipod speakers

Hello, My son and I are trying to build a set of iPod speakers. We are very much beginners. The idea is that he has an...
1 comments posted 20yrs
posted by mwheels
1 comments posted 20yrs posted by mwheels

A capacitor question

Years and years ago I asked my Dad what MFD meant on a capacitor. He explained it meant micro farad. All the capacitors...
6 comments posted 20yrs
posted by etpm
6 comments posted 20yrs posted by etpm

why do we use these

what is the use of composite signal generator, zero crossing detector and comparator
28 comments posted 20yrs
posted by dhana123
28 comments posted 20yrs posted by dhana123

p-channel mosfet basic question

Hi all - I've got a 2N5462 device that I'm trying to set up as a basic high-side switch. I just want to turn on an LED...
4 comments posted 20yrs
posted by starfire151 AT cableone DOT ne
4 comments posted 20yrs posted by starfire151 AT cableone DOT ne

Instek's new 2204 O'scopes

Hi: Has anyone used one? Any thoughts or comments on them and are they worth the $$$? Thanks in advance Igor
3 comments posted 20yrs
posted by igor_the_terrible
3 comments posted 20yrs posted by igor_the_terrible

Flashing a high brightness LED

I have been experimenting with the super high brightness Luxeon white LEDs. I had hoped to be able to flash on/off a co...
12 comments posted 20yrs
posted by newszz10
12 comments posted 20yrs posted by newszz10