Hobby Electronics Basics

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Stepper motor testing

Is there a way I can test a stepper motor on my bench without the driver? Does anyone make a stepper motor test device?...
14 comments posted 17yrs
posted by uriahsky
14 comments posted 17yrs posted by uriahsky

OT: What font settings?

Outlook Express: TOOLS>OPTIONS>READ>FONTS Are folks here here set to Courier New in "Proportinal Font:" AND "Fixed-Width...
10 comments posted 17yrs
posted by notty
10 comments posted 17yrs posted by notty

Need a good book on how to use an Oscilloscope

I know the basics of using a scope but my scope HP1710a (working now), has more inputs outputs and knobs than I know wh...
10 comments posted 17yrs
posted by clutch
10 comments posted 17yrs posted by clutch

Looking for a cable connector

I need to replace a cable connector on the control panel of a HP psc 750xi printer. The control panel pops off the rest...
2 comments posted 17yrs
posted by no.way
2 comments posted 17yrs posted by no.way

Help configuring battery

I use a CPAP machine to keep my airway open while I sleep. I want to configure a light and energy dense battery setup s...
2 comments posted 17yrs
posted by americansun
2 comments posted 17yrs posted by americansun

0V in a schematic

I can see that when you see a voltage statement on a schematic, that is a statement of the voltage at that point with r...
26 comments posted 17yrs
posted by notty
26 comments posted 17yrs posted by notty

Astable Multivibrator - why does it break down?

Hello, I have questions about this version of an Astable Multivibrator: +v |______________ | | R1 1M e | ________b Q2 P...
2 comments posted 17yrs
posted by trigraph
2 comments posted 17yrs posted by trigraph

Effect of the supply internal resistance

I'm looking at voltage dividers. Trying to learn what I probably knew one time. Say you have a battery supplying 10v, a...
26 comments posted 17yrs
posted by notty
26 comments posted 17yrs posted by notty

UK source for this magnetic switch?

Can anyone point me towards a UK source (phone or online) for an inexpensive cylindrical, enclosed reed switch, N/C, fo...
35 comments posted 17yrs
posted by terrypinDELETE
35 comments posted 17yrs posted by terrypinDELETE

Hi again

Can someone please look at this site an watch the videos. Let me know If you think this guy is for real? Im considering...
2 comments posted 17yrs
posted by shoney1102
2 comments posted 17yrs posted by shoney1102

Transformer Current

Nutshell: I have a lead acid 12V battery charging device that used a wall transformer rated as 120 VAC 26W input, 12 VA...
10 comments posted 17yrs
posted by usenet2
10 comments posted 17yrs posted by usenet2

Operational Amplifier basics

I'm trying to understand Op Amps first time round. Are the following statements correct? I've rushed it a bit, so most...
39 comments posted 17yrs
posted by notty
39 comments posted 17yrs posted by notty

Tips on where to look for manual scans HP1710a

I took a chance on ebay and bought a HP 1710a scope. Powers up, has a beam I can see if I hit beam finder button but no...
4 comments posted 17yrs
posted by clutch
4 comments posted 17yrs posted by clutch