Electronic Components

Ceramic capacitor polarity trick

Hello, I know that MLCCs have no polarity associated with them. However, I'm wondering if there's a way to make the cap...

49 comments posted 20yrs

posted by jaylar41

49 comments posted 20yrs posted by jaylar41

Need 12VAC wall transformer for Singapore

I'm searching for a source for 12VAC 500mA wall transformers (that is, "wall warts" or "AC adapters"), with 230V input...

7 comments posted 20yrs

posted by walterh

7 comments posted 20yrs posted by walterh

Dodgy LEDs!

Some LEDs I've been using to test prototypes for a bicycle lighting set have given some rather inconsistent results! Us...

13 comments posted 20yrs

posted by dai.ode

13 comments posted 20yrs posted by dai.ode

Possible to re-insulate transformer wires?

I have a transformer from a welder that I believe has shorted out. I'd like to rewind it, but the wire is covered with...

0 comments posted 20yrs

posted by higrafey

0 comments posted 20yrs posted by higrafey

Texas instruments sop-8 chip identification "B57916"

I come back about the chip marked "B57916". in fact I mistook the chip is not manufactured by general semiconductor but...

0 comments posted 20yrs

posted by matthieu.benoit

0 comments posted 20yrs posted by matthieu.benoit

What is "Leakage Current" (ESD Suppressors)?

Hi all, I am trying to learn about ESD Suppressor but I don't understand the term Leakage Current. Can someone help me...

4 comments posted 20yrs

posted by quanghoc

4 comments posted 20yrs posted by quanghoc

Header Jumper Wire

Does anyone know where to get some wire jumpers for 0.1mm headers? I do a lot of board to board connections with header...

2 comments posted 20yrs

posted by mottoblatto

2 comments posted 20yrs posted by mottoblatto

Wanted: Elantec EL1519CS

I need an Elantec EL1519CS line driver or a close equivalent to repair my ADSL modem. Can anyone help? I would also lik...

5 comments posted 20yrs

posted by andrew

5 comments posted 20yrs posted by andrew

Wierd overheating of LM780x's

Hi all, A couple of months ago I built a circuit that involved connecting a few LM780x voltage regulators to the same 1...

16 comments posted 20yrs

posted by mark

16 comments posted 20yrs posted by mark

Low Cost USB RF & Microwave CW Power Meters on Laptop or PC

* High Performance! NOT High Cost o A replacement solution for conventional power meter and sensor. o Simple USB connec...

0 comments posted 20yrs

posted by dravie

0 comments posted 20yrs posted by dravie

NEED: used/working RCA TV Tuner

Lets see what this stirs up: Looking for an ADT004 Tuner module for an older RCA TV. The RCA part #179585. Thanks in adv...

1 comments posted 20yrs

posted by bearmore

1 comments posted 20yrs posted by bearmore

Need advice on using the PIC 18F1320's AD converter

Hi all, I am doing a project for someone that involves using the A/D converter on a PIC18F1320 microcontroller. I belie...

3 comments posted 20yrs

posted by mark

3 comments posted 20yrs posted by mark

implantable biomed devices... seeking comment

If you are a qualified or experienced BME, EE Professional or Expert, please look at the photos posted at http://www.la...

2 comments posted 20yrs

posted by larsonmedia

2 comments posted 20yrs posted by larsonmedia

XTR300 chips from TI needed

Anybody out there who has 20+ XTR300 chips (XTR300AIRGWT) spare and is willing to sell them? I even would take a whole o...

3 comments posted 20yrs

posted by d8oh5h0zzzxaody

3 comments posted 20yrs posted by d8oh5h0zzzxaody

LEDs washed out by sunlight

Can anyone point me towards a passive front panel indicator? I once saw a tiny flip dot device which moved a yellow dis...

2 comments posted 20yrs

posted by markcooling

2 comments posted 20yrs posted by markcooling