Hobby Electronics Basics

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a PC Based Oscilloscope?

Hello, My company wants to buy an oscilloscope. The scope that meets our needs is around $7,000. I am sure we can save...
29 comments posted 18yrs
posted by titani
29 comments posted 18yrs posted by titani

pulsed DC and transformers

I'm trying to figure out if I could drive a transformer with pulsed DC, and have it work (not saturate, overheat, etc.)...
16 comments posted 18yrs
posted by mrdarrett
16 comments posted 18yrs posted by mrdarrett

which oscilloscope?

Hello, My boss asked me to evaluate oscilloscopes and to recommend one. I know Tektronix and LeCroy. Which is better? A...
46 comments posted 18yrs
posted by titani
46 comments posted 18yrs posted by titani

learning about transistor equivalent to R_ds_on

In this data sheet for the TIP31A: http://www.fairchildsemi.com/ds/TI/TIP31A.pdf The spec is given: VCE(sat) * Collecto...
7 comments posted 18yrs
posted by mrdarrett
7 comments posted 18yrs posted by mrdarrett

voltage question

Hi, I'm a newbie and wanting some advaice. I just purchased a multi-meter and was wondering when I check the charge or...
10 comments posted 18yrs
posted by iknowbutidontknow
10 comments posted 18yrs posted by iknowbutidontknow

load device

I have succeeded in building the Led timer. Two used 9v batteries outputting 13-15 v, are timed via a 555, to light up...
0 comments posted 18yrs
posted by kvsteve
0 comments posted 18yrs posted by kvsteve

Soldering onto NiMH batteries?

Hello all, I've only done a little soldering before, but I want to rebuild a battery pack for my TI-59 calculator (whic...
13 comments posted 18yrs
posted by deanbrown3d
13 comments posted 18yrs posted by deanbrown3d

Valve preamp

I have found a valve preamp kit in an online store, to go between an amplifier based on an LM380 chip, and a crystal or...
8 comments posted 18yrs
posted by the1930s
8 comments posted 18yrs posted by the1930s

coil winding sensor

hello, I want to make a coil winding machine, I would like to implement a sensor so I can count the velocity of the wir...
14 comments posted 18yrs
posted by lerameur
14 comments posted 18yrs posted by lerameur

Use USB memory stick as random memory?

Is it possible to use a little USB flash drive as RAM memory for a PIC microcontroller project without a lot of serial...
5 comments posted 18yrs
posted by wrongaddress
5 comments posted 18yrs posted by wrongaddress

Bright up your advertising with a slim light box !

LED slim light box, CCFL slim light box, EEFL slim light box, Fluorescent (T4/T5) slim light box are widely used in Ban...
0 comments posted 18yrs
posted by madamenihao
0 comments posted 18yrs posted by madamenihao