General Electronics

Those no-name 2 for ten bucks "shake lights"

Picked up a pair of those two for 5 bucks shake lights Walgreen's is pushing this Xmas. Complete box copy from mine (ty...

26 comments posted 20yrs

posted by dakidd

26 comments posted 20yrs posted by dakidd

Looking for cheap mosfet driver for half bridge

I'm looking for a cheap mosfet gate driver for half bridge configuration. -mosfets to be used for dc motor control -half...

7 comments posted 20yrs

posted by siliconmike

7 comments posted 20yrs posted by siliconmike

Free dual trace oscilloscope

I am in the process of moving & need to get rid of an oscilloscope. It's a 10 mhz Heathkit dual trace from the late 70'...

1 comments posted 20yrs

posted by tzygkptr

1 comments posted 20yrs posted by tzygkptr

Electrical ower service question

Service to building is 150A, 115/220 single-phase. Proprietor wants to run a 3-phase machine using rotary converter. Ho...

16 comments posted 20yrs

posted by incognito

16 comments posted 20yrs posted by incognito

how to control an inkjet catridge?

Hello, Might someone happen to know a way to control the inkjet cartige with pulse signals instead of the computer? wou...

4 comments posted 20yrs

posted by hlepek

4 comments posted 20yrs posted by hlepek

How to put Air-Gap in EI cores?

One application note helped me calculate the Air Gap in the center branch of EI core, for my SMPS design. I'm about to...

7 comments posted 20yrs

posted by siliconmike

7 comments posted 20yrs posted by siliconmike

oled

can any body tell me that oled can be mounted practically in a application project .if yes how

1 comments posted 20yrs

posted by priya_6683

1 comments posted 20yrs posted by priya_6683

Battery charging with SMPS question.

I'm trying to build a basic car battery charger. The charger will use a 14.4V, 4A SMPS to charge the battery. The SMPS...

2 comments posted 20yrs

posted by siliconmike

2 comments posted 20yrs posted by siliconmike

Equations for flyback convertor - derive help.

I found this excellent design procedure for flyback SMPS: http://fairchildsemi.com/an/AN/AN-4137.pdf Beautiful equation...

2 comments posted 20yrs

posted by siliconmike

2 comments posted 20yrs posted by siliconmike

Identify a white LED using only 1.5 volts

Looking for a source for ultra bright LED found in single cell flashlights now being sold everywhere. Catalogs all show...

5 comments posted 20yrs

posted by bwegher

5 comments posted 20yrs posted by bwegher

mosfets keep failing

Hi all, simple half bridge setup, mosfet power rail running at 70VDC (200V max mosfet spec), loaded with approx 50ma (a...

3 comments posted 20yrs

posted by exxos

3 comments posted 20yrs posted by exxos

HDTV standards help

Are the standards for HDTV the same worldwide? I ask because there are Sony 32" LCD units for sale in England with a 'd...

1 comments posted 20yrs

posted by footboarder

1 comments posted 20yrs posted by footboarder

remote pad repair

Thanks to a most helpful hint from Jason Betts, I purchases a bottle (1/2 teaspoon, or less) of "Permatex" rear window...

0 comments posted 20yrs

posted by footboarder

0 comments posted 20yrs posted by footboarder

PDF Explorer V1.5 Build 47 released

Hello, PDF Explorer V1.5 Build 47 released. Verify online for what's new in this version. PDF Explorer is a PDF file ma...

0 comments posted 20yrs

posted by pdfe

0 comments posted 20yrs posted by pdfe

Is magnetic field affected by metal conductor?

Hi, Is magnetic field affected by metal conductor? How metal works with electric field, magnetic field, and electromagne...

10 comments posted 20yrs

posted by prem.sivasamy

10 comments posted 20yrs posted by prem.sivasamy