Hobby Electronics Basics

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thinking of exploring digital electronics

hi all i recently had the chance to program a microcontroller, and i was really fascinated by the idea that there's a w...
9 comments posted 20yrs
posted by sean_mcilroy
9 comments posted 20yrs posted by sean_mcilroy

Simple audio band-pass filters with sharp cut-offs

I want to split an audio signal into 5 bands by frequency range (top and bottom can be low-pass and high-pass) and send...
4 comments posted 20yrs
posted by mistawizard
4 comments posted 20yrs posted by mistawizard

Tracking Generator

Could someone please straighten me out. What is a tracking generator? I know they go with spectrum analyzers, and I hav...
9 comments posted 20yrs
posted by sck0006
9 comments posted 20yrs posted by sck0006

can i make radio station of my own

i have to make a project so i decide to make a radiostation if i attach an anteena to my taperecoder can it help how i...
6 comments posted 20yrs
posted by neeraj_indian007
6 comments posted 20yrs posted by neeraj_indian007

why cellular phone are called cellular

i want to know why celllular phone are called so and other details like what is bluetooth, gprs gsm there advantages and...
8 comments posted 20yrs
posted by neeraj_indian007
8 comments posted 20yrs posted by neeraj_indian007

clocked-synchronous state machine analysis

hi, i have problem in clocked synchronous state machine analysis in which im not able to analyse the timing diagrams co...
12 comments posted 20yrs
posted by karu_0072002
12 comments posted 20yrs posted by karu_0072002

Cold Fusion Reactor needs Power Supply Help !

Hi - I need a 160 VDC 1KVA 4A Power Supply (is how it is termed in the instructions) , and I am ignorant about 'either...
21 comments posted 20yrs
posted by omicron89
21 comments posted 20yrs posted by omicron89

Annoying noise interference

I've just set up a newly purchased pair of Technics 1210's and a Behringer VMX200 mixer. I've connected the mixer to my...
2 comments posted 20yrs
posted by tjkeeley
2 comments posted 20yrs posted by tjkeeley

rectifier efficiency

At higher frequencies, the rectifier seems to perform lower conversion efficiency. What is the reason?
3 comments posted 20yrs
posted by lakers_192002
3 comments posted 20yrs posted by lakers_192002

Question about ohm's law and resistor wattage

A thing struck me right now: Consider a 10v-circuit with a 1A-load. This gives 10W dissipation (P = U*I = 10 * 1 = 10)....
2 comments posted 20yrs
posted by bos
2 comments posted 20yrs posted by bos

60 amp single pahese 240 volt AC supply (UK)

I have bought a TIG welder that will run off UK 240 volt single phase 50 hertz AC supply, but on full power can draw up...
11 comments posted 20yrs
posted by chris
11 comments posted 20yrs posted by chris

forward converter duty cycle question

Looking at the forward converter topology illustrated here: http://schmidt-walter.fbe.fh-darmstadt.de/smps_e/edw_hilfe_...
8 comments posted 20yrs
posted by kellrobinson
8 comments posted 20yrs posted by kellrobinson

T91 Relay replacement

I'm trying to fix an old heater control board. One of the relays blew out, but it's no longer made. It was a Potter and...
0 comments posted 20yrs
posted by Geodanah
0 comments posted 20yrs posted by Geodanah