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Question Re Welding Transformers Turns Ratio

Hi All! Wondering if anyone in the group is involved with welding machines and if so if they could tell me what the tur...
0 comments posted 19yrs
posted by fjxallen
0 comments posted 19yrs posted by fjxallen

Grounding Question(s)

I can not seem to find any listings for massachusetts electrical code(s) for grounding an OTA antenna. To be used for a...
8 comments posted 19yrs
posted by JER67
8 comments posted 19yrs posted by JER67

Low cost PCB mount motion sensor

Hello, I am looking for a low cost PCB mount motion sensor. I don't have a lot of experience with sensors but have seen...
1 comments posted 19yrs
posted by mark.tekippe
1 comments posted 19yrs posted by mark.tekippe

NICAD cell problem - dendril?

I suspect that I have cells with dendrils in my three DeWALT DE9074 12V 1.3Ah Nicad packs. These packs have been used w...
8 comments posted 19yrs
posted by Beemer
8 comments posted 19yrs posted by Beemer

IGBT, MOSFET, HVFET high frequency switching units

IGBT, MOSFET, HVFET high frequency switching process Introduction high-tech operate engineering company IPM develops an...
0 comments posted 19yrs
posted by werner-grosse
0 comments posted 19yrs posted by werner-grosse

Generac and frequency control

There are a few other posts about this but I'm going to chime in also. We just installed a Generac 16KW generator at ou...
21 comments posted 19yrs
posted by nnord
21 comments posted 19yrs posted by nnord

Dangerous connections?

Hello, A few months ago i posted a question about connecting a bit of equipment to the mains power utility, and the pra...
8 comments posted 19yrs
posted by john.smith
8 comments posted 19yrs posted by john.smith

Power Saver circuit

Hi to all How does the Power Saver, that switches off the fridge between set times of the day, work? Can any of you who...
3 comments posted 19yrs
posted by clueless
3 comments posted 19yrs posted by clueless

Precision Resistance Measurement

I have a 90 v. DC generator. I want to monitor the current using a data logger. I thought I would determine the resista...
3 comments posted 19yrs
posted by ecarecar
3 comments posted 19yrs posted by ecarecar

Use dummy cell in two cell battery charger?

At home I use an "intelligent battery charger" which charges cells two at a time and both must be present for the charg...
4 comments posted 19yrs
posted by no
4 comments posted 19yrs posted by no

hold off voltage

Hi I wish to know the explanation of hold off voltage Thanks
1 comments posted 19yrs
posted by pfaisalbe
1 comments posted 19yrs posted by pfaisalbe

Grounds for Electric Fences

The folks who make electric fence "chargers" and the associated supplies usually tell the users to NOT bond the electri...
15 comments posted 19yrs
posted by <nni/gilmer
15 comments posted 19yrs posted by <nni/gilmer