General Electronics

HOWTO Determine Unknown XTAL Freq

Good day. I recently removed some crystals from some old electronic devices but do not know what frequency they are. Is...

7 comments posted 19yrs

posted by me

7 comments posted 19yrs posted by me

Futuro Elettronica S.R.L. AKA www.futuroelettronica.com Scam Internet Website for Electronic Goods Who Takes Your Money and RUNS!!! Rome Italy

I'm just a stay home mom trying to start a homebased business on ebay. The hottest products selling quick happen to be...

2 comments posted 19yrs

posted by Erica.Sabo

2 comments posted 19yrs posted by Erica.Sabo

Importance of mA in AC to DC converter?

I have a device which requires DC input - 9.0VDC 300mA I have an AC/DC adapter with output of 9VDC 600mA Will I damage...

6 comments posted 19yrs

posted by noelma

6 comments posted 19yrs posted by noelma

Problems of transformer, snubber and freewheeling design of push pull DC-DC converter using SG3525

Hi everyone, as part of inverter project I need to build a step up converter that converts 12VDC to 360VDC using push p...

0 comments posted 19yrs

posted by w2kwong

0 comments posted 19yrs posted by w2kwong

Universal Remote

Does anyone have any experience with the X10 iconRemote? www.x10iconremote.com I have a TV, DVD player, Digital Cable B...

3 comments posted 19yrs

posted by bennysmithisgod

3 comments posted 19yrs posted by bennysmithisgod

MOSFET driver killed with no particular reason

hi to everyone. I mysteriously killed 5 MOSFET half bridge drivers and wish to see if anyone can help. I'm making a N-M...

2 comments posted 19yrs

posted by w2kwong

2 comments posted 19yrs posted by w2kwong

Repainting a keyboard matrix

I'd like to move the electronics from one keyboard into another. The problem is that the matrices are different. They a...

2 comments posted 19yrs

posted by die

2 comments posted 19yrs posted by die

New Mondo Site

Hi, Here is the 'new and improved' pic projects website. http://mondo-technology.com Luhan Monat

0 comments posted 19yrs

posted by luhanis

0 comments posted 19yrs posted by luhanis

Annoying obsolete 44 pin sound chip?

Hi all. I've got a PCB here originally from a motorised robot car which according to the manufacturers has a blown soun...

2 comments posted 19yrs

posted by testing_h

2 comments posted 19yrs posted by testing_h

Amplifiers in parallel

I'm using a Velleman kit amplifier, http://www.allelectronics.com/cgi-bin/item/MK-4001/search/7_WATT_MONO_AMPLIFIER_KIT...

3 comments posted 19yrs

posted by paulinlapine

3 comments posted 19yrs posted by paulinlapine

Help finding a part.

I have a motor controller board that needs some new parts. On of them I can not identify. I am about 99% sure it is a c...

5 comments posted 19yrs

posted by 1qazse4

5 comments posted 19yrs posted by 1qazse4

Transformer question - I'm puzzled

Honeywell's published documentation for their R182C switching relay http://customer.honeywell.com/techlit/pdf/95-0000s/...

13 comments posted 19yrs

posted by spambait

13 comments posted 19yrs posted by spambait

impedance paper

Anyone has soft copy of impedance paper. The impedance paper is looks like in following reference. I could not find in...

3 comments posted 19yrs

posted by krishmaniac

3 comments posted 19yrs posted by krishmaniac

RLC network transfer function

is there a quick way to find the transfer function for a RLC network without going step by step solving of the KVL,KCL a...

3 comments posted 19yrs

posted by krishmaniac

3 comments posted 19yrs posted by krishmaniac

RF/antennas hands-on book

I need to brush up my RF and antenna knowledge, which is always something that I've almost but not quite understood. I'...

9 comments posted 19yrs

posted by theom+news

9 comments posted 19yrs posted by theom+news