Hobby Electronics Basics

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Autotransformers

I understand the basic idea of an autotransformer, using a tapped winding to raise or lower a voltage and no isolation...
8 comments posted 16yrs
posted by cjaysharp
8 comments posted 16yrs posted by cjaysharp

run 6V DC motor @ 12V w/ PWM ?

If I run a 6 volt dc motor at 12 volts, using less than 100% PWM, will it be ok? or will it still burn out. thanks
5 comments posted 16yrs
posted by com
5 comments posted 16yrs posted by com

Simple DC voltage modifier

Hi, It's been years since I've done any basic circuit design, so I'm looking for a couple of pointers in the right dire...
18 comments posted 16yrs
posted by danpat
18 comments posted 16yrs posted by danpat

HDS-200 / Motorola 6800 Development tool

Is there any interest out there in this (antique) development tool? I've got one (it takes up a lot of space!) that I wo...
5 comments posted 16yrs
posted by tomcees_pc
5 comments posted 16yrs posted by tomcees_pc

Need help hooking up illuminated pushbutton switch

Can somebody please help me figure out how to hook up an illuminated pushbutton switch that I bought to my range hood?...
18 comments posted 16yrs
posted by q34wsk20
18 comments posted 16yrs posted by q34wsk20

Brooks 1931 paper on inductance design

In case anyone wants it, google books has H. B. Brook's 1931 paper called "Design of Standards of Inductance, and the P...
16 comments posted 16yrs
posted by jonk
16 comments posted 16yrs posted by jonk

Inductor calculation?

I am trying to calculate the inductance of a multi-row, multi-layer air-core coil that has a square winding cross secti...
22 comments posted 16yrs
posted by Winston
22 comments posted 16yrs posted by Winston

inductor current question

Hello, ok, say you've got a DC voltage supply in series with a switch and an inductor, the inductor ties back into the...
27 comments posted 16yrs
posted by panfilero
27 comments posted 16yrs posted by panfilero

Printed Battery Sheets

The patent laws need to include some kind of protection for muses. Shakespeare wrote that the muse was the real prime m...
0 comments posted 16yrs
posted by Bret_E_Cahill
0 comments posted 16yrs posted by Bret_E_Cahill

Unsolicited testimonial

--A pal showed me this site over the weekend; it gets idiots like me from breadboard to gerber files with a minimum of...
7 comments posted 16yrs
posted by steamer
7 comments posted 16yrs posted by steamer

override IR power on switch?

hello, i have a sharp AC/Dehumidifyer that cost me a lot of money. its nice and quiet. but, i'd like to set it on a tim...
4 comments posted 16yrs
posted by maxslomoff
4 comments posted 16yrs posted by maxslomoff

fixing my dishwasher

My dishwasher stopped heating the water so I checked the heating element resistance and I get 13 ohms. Well the manual...
22 comments posted 16yrs
posted by siccusproprius
22 comments posted 16yrs posted by siccusproprius

Basic inductor question

How is it that the winding direction of a coil whether it is CW or CCW has no effect on the direction of the induced vo...
3 comments posted 16yrs
posted by mhelshou
3 comments posted 16yrs posted by mhelshou