Hobby Electronics Basics

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where to attach the ESD wrist stap's crocodile clip

Hello and happy new year in advance. :) I have a question here. where would be the suggested spot to attach the crocodi...
15 comments posted 18yrs
posted by buttered.fingers
15 comments posted 18yrs posted by buttered.fingers

Visor magnification for SMD work?

I've been looking into getting an OptiVISOR for surface mount soldering work but am unsure about what magnification lev...
10 comments posted 18yrs
posted by jmuchow
10 comments posted 18yrs posted by jmuchow

nulling offset in a comparator

I need a blocking diode that will conduct about ten amps. I have a leftover comparator out of a quad, so I decided to u...
0 comments posted 18yrs
posted by nospam
0 comments posted 18yrs posted by nospam

Quartz oscillator

Hello, I'm working on a PCB on which I have to put a 17,72 (4fsc) oscillator. I have one unused schmitt trigger inverti...
5 comments posted 18yrs
posted by ginesj
5 comments posted 18yrs posted by ginesj

PIC timing

Okay, I was curious about the actual speed my controller is running at, so I ran the following loop on it. If I'm not m...
4 comments posted 18yrs
posted by randy.day
4 comments posted 18yrs posted by randy.day

Schottky-barrier diode and frequency performance

Hi, How can a Schottky-barrier diode enhance frequency performance ? Can someone here kindly provide me with some link...
3 comments posted 18yrs
posted by karthikbalaguru79
3 comments posted 18yrs posted by karthikbalaguru79

Regulated 9 Volt DC Power Supply

Can anyone help me with information on building a 9 volt regulated power supply that runs off 250 volts AC mains? Any he...
19 comments posted 18yrs
posted by the1930s
19 comments posted 18yrs posted by the1930s

Hall effect sensor

I'd like to use a Hall Effect sensor to detect 6 magnets on the outside of a 2.5" rotating cylinder. It rotates at 20 R...
7 comments posted 18yrs
posted by thomas
7 comments posted 18yrs posted by thomas

microcontroller ROM copy trouble ?

I have a working (ie. tested) microcontroller board uses a (Philips MAB-8031-AH-12p) MCU a 8051 variant, maybe romless...
59 comments posted 18yrs
posted by some
59 comments posted 18yrs posted by some

PIC puzzle

Okay, new PIC issue causing premature forcible hair removal. The code below is supposed to put 1's on the PORTB pins (P...
2 comments posted 18yrs
posted by randy.day
2 comments posted 18yrs posted by randy.day

Connecting powered speakers to a sound card

Hi, I have just run cables around the house with the idea of sending audio output to various powered speakers from the...
2 comments posted 18yrs
posted by remcg
2 comments posted 18yrs posted by remcg

acoustics

A few days ago, I was in a room on the third floor, the window was open, some people were conversating down at street l...
7 comments posted 18yrs
posted by r_delaney2001
7 comments posted 18yrs posted by r_delaney2001