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M3 Semiconductor Analyzer kit?

Dear all, Do you have any opinion on M3 Semiconductor Analyzer kit? http://www.m3electronix.com/kit.html It looks nice t...
0 comments posted 18yrs
posted by satoru_uNoSpamPlease
0 comments posted 18yrs posted by satoru_uNoSpamPlease

What software to draw schematics?

Is there a good, small freeware program for XP for drawing schematics? I don't need to route boards, so I wouldn't need...
24 comments posted 18yrs
posted by gh424NO824SPAM
24 comments posted 18yrs posted by gh424NO824SPAM

Help understanding circuits

Hi, I was wondering if someone might be able to answer some questions on the following video transmitter circuits... ht...
1 comments posted 18yrs
posted by itwasme33
1 comments posted 18yrs posted by itwasme33

Active low-pass filter with gain

I'm using an LM741 as an active low-pass filter. Non-inverting input with output capacitor feedback between two series...
9 comments posted 18yrs
posted by news
9 comments posted 18yrs posted by news

power on delay circuit

Hi my name is chittaranjan. I need a waveform with power on as follows 1.HIGH for 1 sec 2. LOW for 2 sec 3. HIGH permane...
3 comments posted 18yrs
posted by chittaranjan.janardhan
3 comments posted 18yrs posted by chittaranjan.janardhan

unused analog switch sections

Hello, All! I am trying to design a PI metal detector. I need some advice on what to do with unused I/O pins on a quad...
2 comments posted 18yrs
posted by bretth2o
2 comments posted 18yrs posted by bretth2o

circuit diagram of datex ohmeda

i want circuit diagram of " datex ohmeda pulse oximeter 3800 " model...
1 comments posted 18yrs
posted by mehalshah09
1 comments posted 18yrs posted by mehalshah09

Heat generated from a resistive load

Does anyone happen to know of a chart, or a method to calculate the approximate heat generated from a near pure resisti...
6 comments posted 18yrs
posted by frysning
6 comments posted 18yrs posted by frysning

Line Driver Question

I have a bunch of chip pulls that are called Line Drivers (single, dual, quads). Nothing seems to pop-out when searchin...
12 comments posted 18yrs
posted by jsalzman
12 comments posted 18yrs posted by jsalzman

Open Instrumentation Project News #7

This is Newsletter #7 of the Open Instrumentation Project. The OIP makes open-source Tcl/Tk software and economical hig...
2 comments posted 18yrs
posted by Peter.Hiscocks
2 comments posted 18yrs posted by Peter.Hiscocks

Phase shift

Hello , i am trying to combine or mix three signals with the same frequency together in one channel. i have no idea hw...
12 comments posted 18yrs
posted by daqamseh2002
12 comments posted 18yrs posted by daqamseh2002

Help with 12 volt rocket igniter

Hi all, I was looking into building a simple (but hopefully cool) model rocket igniter. Yeah I'm bored, but stupid as a...
15 comments posted 18yrs
posted by ultralightbackpacker
15 comments posted 18yrs posted by ultralightbackpacker

Insulator in paste form

Is there an insulator of choice in paste form where I can use to cover some of the wires that get exposed in small elec...
11 comments posted 18yrs
posted by mhs000
11 comments posted 18yrs posted by mhs000