Hobby Electronics Basics

  1. Home
  2. Hobby Electronics Basics
9387 Threads Posts
to

Worth reading in Hobby Electronics Basics

Television Salvage

Just found a smashed large-screen rear projection TV near my house. I grabbed all the circuit boards, plus the speakers...
12 comments posted 21yrs
posted by poopy
12 comments posted 21yrs posted by poopy

Neon Sign transformer / Tesla Coil question

Greetings. I have been working on a small tesla coil based around a 10KV 30ma neon xformer. I've built the spark gap, t...
1 comments posted 21yrs
posted by shrumj
1 comments posted 21yrs posted by shrumj

pwm chip

I would like to wire up a current mode pwm chip to drive an inductor to a specific current each cycle. Take the UC3842/...
9 comments posted 21yrs
posted by kellrobinson
9 comments posted 21yrs posted by kellrobinson

RCA

Hi, this is a lame question but : my tv has in its front panel "video", "audio" rca plugs. Then there is one 3.5mm plug...
2 comments posted 21yrs
posted by feswes
2 comments posted 21yrs posted by feswes

Component Identification

I was at a yard sale and picked up a bunch of parts. One of the things I picked up I have no idea what it is. The guy u...
5 comments posted 21yrs
posted by Cretian
5 comments posted 21yrs posted by Cretian

Microchip's _MCLR pull-up cct

Hi I've a relative newbie to electronics and PIC microcontrollers in particular. I'm trying to design a cct using PIC16...
12 comments posted 21yrs
posted by mark.mcgee
12 comments posted 21yrs posted by mark.mcgee

q: Splitting Voltage

Lets say i have a 4v ref voltage and i want to branch it to 3 summing amps can i just run from my 4v to the seperate amp...
1 comments posted 21yrs
posted by chrispol
1 comments posted 21yrs posted by chrispol

Pull up resistor

Is there a rule of thumb on what the resistance should be for a pull up resistor? -- Chris W Gift Giving Made Easy Get t...
4 comments posted 21yrs
posted by 1qazse4
4 comments posted 21yrs posted by 1qazse4

switch on at threshold and hysterisis circuit

Hello, I want to switch on an npn transistor when a sensed voltage exceeds a certain threshold, say 4v, but I don't wan...
6 comments posted 21yrs
posted by ffp944-a
6 comments posted 21yrs posted by ffp944-a

Where to Identify Diodes?

Hello again! I am forever indebted to sci.electronics.basics ;) Do you know of any website where I might be able to ID...
8 comments posted 21yrs
posted by blahbleh666
8 comments posted 21yrs posted by blahbleh666

Toroidal Transformer

ZT3154 Anybody recognize this part # or prefix? Need manufacturer or cross. Thanks MCD
1 comments posted 21yrs
posted by mcd
1 comments posted 21yrs posted by mcd

Blue Earth Research ADC-12 Module and Micro-440e

Just got one of these Blue Earth 8051-based microcontrollers (with no documentation, of course), and am just getting st...
0 comments posted 21yrs
posted by netsirk
0 comments posted 21yrs posted by netsirk

How does this devide power LEDs?

Can anybody explain to me how the device on this page is able to power LEDs? What is it using as a power source? I orde...
5 comments posted 21yrs
posted by mflatley
5 comments posted 21yrs posted by mflatley