Hobby Electronics Basics

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Caps and Diode setting on meters

Believe it or not, I have been into electronics for a long time but for some reason some things don't sink in. Like wha...
9 comments posted 19yrs
posted by uriahsky
9 comments posted 19yrs posted by uriahsky

what is voltage at sources of diffamp?

Hi, With a standard CMOS diffamp configuration ie. a current sink with two NMOS transistors above it with both sources...
1 comments posted 19yrs
posted by tedthornton11
1 comments posted 19yrs posted by tedthornton11

access bank

hello.thanks for replies. i am working with pic18f452. in it's data memory there is a part named access bank or access r...
2 comments posted 19yrs
posted by adonis_318
2 comments posted 19yrs posted by adonis_318

4-8ch relay board ?

Hi, Anyone know of a good relay board, that can be interfaced from a mcu using either 1digital output (20ma max, or if...
6 comments posted 19yrs
posted by nospam
6 comments posted 19yrs posted by nospam

hacks using portable dvd player screens ?

hi, any one know of any hacks / mods or websites , using a portable dvd player screen ? i have a portable dvd player , t...
1 comments posted 19yrs
posted by krawczuk65
1 comments posted 19yrs posted by krawczuk65

overriding

hello to everybody.i have a problem with this sentence: If 'a' is 0, the Access Bank will be selected, overriding the BS...
3 comments posted 19yrs
posted by adonis_318
3 comments posted 19yrs posted by adonis_318

store refrigerator unplugged

Shall I store my eight year old Samsung waist high refrigerator: *unplugged? *unplugged, except for 5 minutes every 3 m...
8 comments posted 19yrs
posted by jidanni
8 comments posted 19yrs posted by jidanni

Allegro 5804 ICs

Can anyone suggest a source of Allegro's UCN 5804b translator/driver chip (preferably in Australia but anywhere that wi...
2 comments posted 19yrs
posted by mkmitch
2 comments posted 19yrs posted by mkmitch

microstepping circuits

Dear all, hi, my name is george (yioryos in greek) dimitriadis, and this is my first post. I would be grateful if every...
1 comments posted 19yrs
posted by tainaros2004(remove this)
1 comments posted 19yrs posted by tainaros2004(remove this)

240V mains?

So is the mains really 240V CT and our 120V comes from one one of those or is it different? i.e. does 240V come from th...
20 comments posted 19yrs
posted by Jon_Slaughter
20 comments posted 19yrs posted by Jon_Slaughter

Problem Using a DC Power Supply

I have the following Power Supply http://www.globalspecialties.com/1302b.html I can adjust the voltage by rotating the...
14 comments posted 19yrs
posted by frank_logic
14 comments posted 19yrs posted by frank_logic

Checking a BC548B NPN Transistor?

Does anyone know how to check a BC548B transistor using a basic digital multimeter? I have been trying to use the resis...
62 comments posted 19yrs
posted by nospam
62 comments posted 19yrs posted by nospam

Seeking Dual Car Battery Installation Advice

I'm about to configure my 97 Plymouth van so that it has two batteries. The second battery will be kept in the rear of...
7 comments posted 19yrs
posted by wolf_tracks
7 comments posted 19yrs posted by wolf_tracks

maximum practical current flow from a battery

In the interests of minimizing weight, I'd like to use a coin battery in my project. Unfortunately, my project is going...
1 comments posted 19yrs
posted by strnbrg
1 comments posted 19yrs posted by strnbrg