Hobby Electronics Basics

9387 Threads Posts
to

Is this what they called it a Hybrid Capacitor?

6 capacitors 60 farad @ 2.7V EACH in serie, then they parallel with a 0.5 farad 16V. I don't see how you can get 60 far...
6 comments posted 17yrs
posted by EnergyMan
6 comments posted 17yrs posted by EnergyMan

Trigger

Can I use a voltage divider on a 230 volt 60 Hz supply followed by a diode to trigger a 555 when applied to the #2 pin?...
16 comments posted 17yrs
posted by dewhurst
16 comments posted 17yrs posted by dewhurst

Transformer

Some years ago I recall, or at least I think that I do, seeing an advertisement for a small cylindrical transformer. Do...
5 comments posted 17yrs
posted by dewhurst
5 comments posted 17yrs posted by dewhurst

panasonic dvd player

can any electronic tech tell me what panasonic dvd player mod RV-32 fault code HO 7 represents
1 comments posted 17yrs
posted by cleartone
1 comments posted 17yrs posted by cleartone

Hfe question

Hello, I was hoping for somebody to explain how to read the hfe column on the specification sheet if you look at digike...
10 comments posted 17yrs
posted by lerameur
10 comments posted 17yrs posted by lerameur

Computer Fan

The case fan in my computer was running slow. The computer is running hot. The original fan has three wires, I replaced...
11 comments posted 17yrs
posted by amdx
11 comments posted 17yrs posted by amdx

SolderSmoke -- The Book!

SolderSmoke -- A Global Adventure in Radio Electronics From Crystal Radios to Podcast MP3s With Occasional Forays into...
0 comments posted 17yrs
posted by bill.meara
0 comments posted 17yrs posted by bill.meara

schottky diode question

Hey all; I'm planning on using a MAX4622 CMOS switch in a circuit I'm building. On p.7 of the data sheet (http://datash...
10 comments posted 17yrs
posted by toccata
10 comments posted 17yrs posted by toccata

Use a Ground or Lightning Rod?

Last week we had a terrific lightning storm, and it hit the TV mast, rotor, and antenna. That was witnessed by a neighb...
9 comments posted 17yrs
posted by notvalid2
9 comments posted 17yrs posted by notvalid2

Oh CRAP!

Now they're pulling the plug on all newsgroups, not just binaries: Please note that on or around July 15, 2009, AT&T wi...
3 comments posted 17yrs
posted by lgarth
3 comments posted 17yrs posted by lgarth

Decibel tutorial

I have created a tutorial to explain decibels. It is located here: http://www.fourier-series.com/rf-concepts/decibels.h...
1 comments posted 17yrs
posted by bulegoge
1 comments posted 17yrs posted by bulegoge

Generate -+5V from 12V

Hi, I need to generate a symmetric +/-5V supply from a single +12V supply. I need about 150mA from the +5V side, and le...
60 comments posted 17yrs
posted by news
60 comments posted 17yrs posted by news

how to build a clock with pulse for the hours!

Wonder if some kind person can describe how I can build a circuit that is basically a black-box (clock) that provides a...
30 comments posted 17yrs
posted by dave
30 comments posted 17yrs posted by dave