Hobby Electronics Basics

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hacking a computer touchpad to return 2 resistances?

Can someone explain how to hack a computer touchpad such as this http://www.newegg.com/Product/Product.aspx?Item=N82E16...
3 comments posted 19yrs
posted by usenet_daughter
3 comments posted 19yrs posted by usenet_daughter

Oscilloscope newbie question

Hello, At the bottom of the screen on my FLUKE PM3082 scope a have : Ch1 1.00 V= MTB 10us ch1f . Does the 1.00 V= means...
4 comments posted 19yrs
posted by sukovic
4 comments posted 19yrs posted by sukovic

need to convert from MIC level to LINE-INPUT level

Most portable cassette tape recorders have a MIC jack where you can plug in a simple microphone. Hpwever, some recordin...
15 comments posted 19yrs
posted by wylbur37nospam
15 comments posted 19yrs posted by wylbur37nospam

B&K 2635 For Sale UK

Hi there, I am selling a newly calibrated B&K 2635 on Ebay UK, auction number 300111686283. regards Alan B&K 2635 For Sa...
1 comments posted 19yrs
posted by alan.davidson14
1 comments posted 19yrs posted by alan.davidson14

Load-pull limitations in PA design?

Hi All, I will be tasked with finding the proper Zin and Zout for a 1W RF power transistor's maximum Pout, gain, and PA...
3 comments posted 19yrs
posted by billcalley
3 comments posted 19yrs posted by billcalley

Help understanding N-Channel MOSFET body diode

Is there a rule of thumb stating how much power an N-Channel MOSFET's internal body diode (anode at source cathod at dr...
0 comments posted 19yrs
posted by Gerbermultit00l
0 comments posted 19yrs posted by Gerbermultit00l

LM556 unused half input termination

Crossposted to sci.electronics.design,sci.electronics.basics ; followups-to set to sci.electronics.basics. I found a 55...
5 comments posted 19yrs
posted by rich
5 comments posted 19yrs posted by rich

variable capacitors - piezo transducer?

According to this wiki page http://en.wikipedia.org/wiki/Variable_capacitor a transducer is a type of variable capacito...
5 comments posted 19yrs
posted by usenet_daughter
5 comments posted 19yrs posted by usenet_daughter

Damaged 7805 regulator?

Hi, I've got a small PIC project with a 7805 regulator. It was working fine until I added ICSP (I soldered in the ICSP...
4 comments posted 19yrs
posted by michael
4 comments posted 19yrs posted by michael

Voltage Drop for Power Adaptor

Hi All, I am planning to light up 178 LEDs (3.4V-3.8V, 25MA) using a 18V/1A Adapter (DC radio shack transformer) and I...
14 comments posted 19yrs
posted by homi_us
14 comments posted 19yrs posted by homi_us

Reading MOSFET SOA graph?

I need a reality check here. :-) Am I reading the FBSOA graph (Fig. 11) correctly for this IXYS MOSFET? http://ixdev.ix...
3 comments posted 19yrs
posted by jmuchow
3 comments posted 19yrs posted by jmuchow

Looking for a see-through style graphical LCD

Hi folks, I have been looking for a see-through style graphical LCD involved in my final year project of bachelor degre...
2 comments posted 19yrs
posted by yaoheling
2 comments posted 19yrs posted by yaoheling

gui in matlab

hello everyone. I have a very important question: how can I create gui in matlab that recieves from the user a two dime...
2 comments posted 19yrs
posted by guy1882
2 comments posted 19yrs posted by guy1882