⏚ Electrical Engineering

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IC amp source?

Can't find a supplier for CD2025 for single quantities. Is there a substitute? Thanks.
2 comments posted 11yrs
posted by mcham
2 comments posted 11yrs posted by mcham

LEDs

Can an LED emit more than one wavelength of light? Thanks.
5 comments posted 11yrs
posted by mike7411
5 comments posted 11yrs posted by mike7411

Replacing a 3ph motor with single phase

I need to provide jog function on a machine (run the motor for a few seconds under load) without use of VFD**. It was d...
14 comments posted 12yrs
posted by invalid
14 comments posted 12yrs posted by invalid

Switch Plates Snap-Together Covers

Hello, Years ago I remember seeing in HD plastic Switch Plates for home usage that snapped together. It was possible us...
1 comments posted 12yrs
posted by rgsros
1 comments posted 12yrs posted by rgsros

Omron E3K

Has any had experience using this Omron E3K photo electric unit as a safety stop/reverse for a commercial roll-up door?...
0 comments posted 12yrs
posted by pilgrim
0 comments posted 12yrs posted by pilgrim

It's a wonder ...

It's a wonder that any of us get to grips with the understanding of electricity, when the fundamental lessons are impos...
1 comments posted 12yrs
posted by no.spam
1 comments posted 12yrs posted by no.spam

240 volt solenoid valve, help needed

Hi I have a 240 volt solenoid valve which is used as a pilot for an Air Valve. On the plate, it states the solenoid is...
3 comments posted 12yrs
posted by gordonbennison
3 comments posted 12yrs posted by gordonbennison

Quick turn around PCB manufacturing

A-TECH CIRCUITS is a China PCB manufacturer who produce PCB products include rigid fr4 pcb, metal core pcb, microwave/r...
0 comments posted 12yrs
posted by atechcircuit
0 comments posted 12yrs posted by atechcircuit

Expert here

Hello all, If any one have any query related to electrical, electronics and computer science engineering, then please c...
8 comments posted 12yrs
posted by engr.adeelkamran
8 comments posted 12yrs posted by engr.adeelkamran

Why do LEDs dim so poorly?

You can buy LED lamps that will change color to anything you can imagine. Why don't they make a dimmable LED that track...
4 comments posted 12yrs
posted by gfretwell
4 comments posted 12yrs posted by gfretwell