Hobby Electronics Basics

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

Worth reading in Hobby Electronics Basics

Beginners question

Hi - I am trying to get a handle on some switching speed concepts - I beleive it is correct that the faster a signal sw...
3 comments posted 21yrs
posted by el_squid_2000
3 comments posted 21yrs posted by el_squid_2000

Telephone intercom with UK phones

Hi all, Will the designs mentioned here work OK with old UK GPO dial phones? http://electronics.howstuffworks.com/telep...
1 comments posted 21yrs
posted by downlode
1 comments posted 21yrs posted by downlode

Triangulate a signal

I guess this is not really a electronics question but some of you guys may know this anyway. I was wondering how to tri...
4 comments posted 21yrs
posted by a-vinje
4 comments posted 21yrs posted by a-vinje

Wireless doorbell switch

Hi Is it possible to convert the output of a wireless Doorbell to power a small relay or switch? Thanks in advance Bob
6 comments posted 21yrs
posted by not.today
6 comments posted 21yrs posted by not.today

555 timer circuit

I'm trying to build a 555 or 556 timing circuit that creates a 5 second pulse to activate a small reed relay once every...
2 comments posted 21yrs
posted by jlwin
2 comments posted 21yrs posted by jlwin

VCCS

Hi, i have a voltage controlled current source that is being short circuited. What happens if the controlling voltage i...
2 comments posted 21yrs
posted by huffmanj
2 comments posted 21yrs posted by huffmanj

12kHz oscillator cct anybody?

Hello, Any helpful soul out there able to point me to a schematic for a transistor (or 1 chip) cct that'll deliver a fix...
10 comments posted 21yrs
posted by martin.peters
10 comments posted 21yrs posted by martin.peters

Phoneline to Soundcard - Need help

Anyone know how-to make a cable that would plug into my telephone jack and then into my computer soundcard? I bought on...
2 comments posted 21yrs
posted by alexwright321
2 comments posted 21yrs posted by alexwright321

Origin of the terms "live" and "hot"

I'm curious as to how the term "live" came to refer to an energized circuit. It is somewhat of a contradiction, as touc...
5 comments posted 21yrs
posted by ganjatoker
5 comments posted 21yrs posted by ganjatoker

case grounded motor wiring

I am wiring a car windshield wiper motor directly to a car battery. The wiring diagram says +12v Terminal1 -12v case gr...
4 comments posted 21yrs
posted by palito
4 comments posted 21yrs posted by palito

thevenin

Hi All Anyone can explain more about deriving a small signal model of any mosfet or bipolar circuit configuration using...
7 comments posted 21yrs
posted by cheanglong
7 comments posted 21yrs posted by cheanglong

BJT under surge condition

Hi all, I'm reading power electronics...can't understand why this happens so with a BJT. Under surge condition Gate tur...
5 comments posted 21yrs
posted by nospam4u_jack
5 comments posted 21yrs posted by nospam4u_jack