Hobby Electronics Basics

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

Worth reading in Hobby Electronics Basics

Help: How to understand this sentence?

I am reading an article on OP Amp. And there is such a paragraph as following: "Details of op amp input and output stru...
5 comments posted 20yrs
posted by loamlo
5 comments posted 20yrs posted by loamlo

NEED schematic PMR 446 mhz !!!

Hello, I am looking for the schematic of : AEG Funky Fun PMR 446Mhz radio transciver. Thanks to all in advance Milan
0 comments posted 20yrs
posted by dautm
0 comments posted 20yrs posted by dautm

Analog Multiplexing

Hi, I want to reduce a circuit for sensing current (Hall Sensor used). In this circuit i measure current from two diffe...
1 comments posted 20yrs
posted by aniket_gokhale
1 comments posted 20yrs posted by aniket_gokhale

Why are LED pulsed?

I am curious. I wonder why LED are pulsed on many of the consumer products I see. I have seen several devices pulse the...
43 comments posted 20yrs
posted by fakeemail
43 comments posted 20yrs posted by fakeemail

Opamp Audio question

I built myself a headphone amplifier for my bass. It's mono using one half of a single-supply dual opamp (TLC272A). I'm...
19 comments posted 20yrs
posted by andrew.queisser at hp com
19 comments posted 20yrs posted by andrew.queisser at hp com

Advice for light detector/counter

For a school project, I need to create a circuit which registers whenever a red laser hits a photoresistor, and display...
0 comments posted 20yrs
posted by pstnly
0 comments posted 20yrs posted by pstnly

FM stereo?

Hi, Let me get get this straight. If I have an FM stereo signal, say at 101.5 MHZ, then I should have a signal tone at 1...
18 comments posted 20yrs
posted by mr.whatever
18 comments posted 20yrs posted by mr.whatever

LED Flasher with Variable Flash Times

I'd like a flasher that I can control flasher time intervals say at 1 min, 5 min, 15 min, and 1 hour. I need the flashe...
15 comments posted 20yrs
posted by wolf_tracks
15 comments posted 20yrs posted by wolf_tracks

Difference between TTL and CMOS

Hi, What is the difference between TTL and CMos Thanks and Rgards, Nick
4 comments posted 20yrs
posted by aniket_gokhale
4 comments posted 20yrs posted by aniket_gokhale

Looking for Toshiba TFD40W11 datasheet

Hi, I'm looking for the toshiba TFD40W11 4" TFT display datasheet does anybody here have it, or know where to find it ?...
2 comments posted 20yrs
posted by noreply
2 comments posted 20yrs posted by noreply

Recommendations for a TEK 465b probe

For normal PIC testing... Also, can you recommend online sites for buying? Thanks Spamming this account signifies your u...
2 comments posted 20yrs
posted by spammersarevermin
2 comments posted 20yrs posted by spammersarevermin

Parallel Series stuff again ;/

I went ahead and came up with a solution to my problem of trying to switch components in all possible series and parall...
20 comments posted 20yrs
posted by Abstract.Dissonance.hotmail.co
20 comments posted 20yrs posted by Abstract.Dissonance.hotmail.co

testing for 24vac

I am currently writing software for an X10 capable sprinkler system. The system has the ability to control 8 zones. Eac...
15 comments posted 20yrs
posted by nospam
15 comments posted 20yrs posted by nospam

Best metals to make homemade battery?

My goal is to work with my son to make a home made battery. The basic battery uses a lemon (or lemon juice) with a copp...
19 comments posted 20yrs
posted by uce
19 comments posted 20yrs posted by uce