Hobby Electronics Basics

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I am building a simple FM radio transmitter

Well, its not so simple for me actually. Thats the project I have chosen for this semester. The most basic circuit I ha...
11 comments posted 18yrs
posted by faizanahmed666
11 comments posted 18yrs posted by faizanahmed666

Basic question about capacitors

Hi all. I'm assembling a stepper motor control circuit using the L298 (http://www.pminmo.com/l297-8/L297_8schematic.pdf...
1 comments posted 18yrs
posted by tiedyedave
1 comments posted 18yrs posted by tiedyedave

surround sound systems

When playing a DVD with a regular player, there are typically only Left and Right audio channels. I understand that the...
2 comments posted 18yrs
posted by mrdarrett
2 comments posted 18yrs posted by mrdarrett

How can I convert 240v to 220v

I bought some electrical sensitive equipment from overseas which runs on 220v. I tried to run it on 240v in Australia a...
9 comments posted 18yrs
posted by timho_au
9 comments posted 18yrs posted by timho_au

10% THD?

Are they serious? http://av.jvc.com/product.jsp?modelId=MODL027647&pathId=5&page=2 "100 watts per channel, 8 ohms at 1kH...
40 comments posted 18yrs
posted by mrdarrett
40 comments posted 18yrs posted by mrdarrett

Oscillating JFET

The JFET (J2) is supposed to turn off Q13 when the switch to the battery opens. This cuts power to the load in the gree...
6 comments posted 18yrs
posted by spamme
6 comments posted 18yrs posted by spamme

high-side current sensing chips

Hi all, I'd like to help out some friends on an antique motorcycle forum that have a 6 volt regulator project. One of t...
26 comments posted 18yrs
posted by nospam
26 comments posted 18yrs posted by nospam

Lighting Capacitors ?

There are wide value of lighting capacitor, range from 4 uf to 50 uf. but I am not sure which value to pick for my 40 W...
4 comments posted 18yrs
posted by mowhoong
4 comments posted 18yrs posted by mowhoong

Plastic Strip ?

I purchased a book from the book shop which has a small plastic white strip attached inside the book,upon payment the c...
1 comments posted 18yrs
posted by mowhoong
1 comments posted 18yrs posted by mowhoong

Is a purely-analog chip possible without sampling?

Hi: Is it possible to have a purely-analog chip that stores audio without using any form of sampling? If an audio casset...
71 comments posted 18yrs
posted by glucegen1
71 comments posted 18yrs posted by glucegen1

MOSFET ratings

Does the current rating of a mosfet take into account all maximum circumstances under normal operating circumstances? e...
2 comments posted 18yrs
posted by Jon_Slaughter
2 comments posted 18yrs posted by Jon_Slaughter

Determine Pin Orientation when no notch

How the heck do you determine the first pin when there is no notch or any special char or anything at all except a line...
9 comments posted 18yrs
posted by Jon_Slaughter
9 comments posted 18yrs posted by Jon_Slaughter

Would a solenoid work?

Hi, I've done a couple microcontroller projects, but otherwise I'm pretty new to electronics. I recently bought an anti...
17 comments posted 18yrs
posted by lonlazarus
17 comments posted 18yrs posted by lonlazarus