About a year ago I sent an e-mail to this group with great replys about a project - a simple asynchronous logic analyzer. A year later, I've finally moved to...
Here's one to tease yourselves over. I have a board to fix and for once, I do not know how to go about it. I designed the thing. It's battery powered, and is...
hi LIST, My friend brought me a used APC BACK-UPS 600 from USA. Upon openning the unit I found out that the two 6 volts battery are dead. I connected it to my...
Hi all, I wondered if anyone had a solution for a remote that seems to have worn out some of its keys. I took it apart, cleaned the keyboard and flexible...
We need a high voltage MOSFET in the smallest possible package. We are currently using the International Rectifier IRFBF20S rated at 900v in the "D" pack, but...
Hi, I like to use the Horowitz notch filter for 50 Hz interference rejection. Could you send me a schematics and corresponding relantionship for components...
harset="iso-8859-1" Content-Transfer-Encoding: quoted-printable JAIME TENG 84 De Jesus Street Queon City Metro Manila 11 3722542 9173439626 HYPERLINK...
I've got a project where I've been asked to search for "low voltage parts". The goal is to run this widget on a single AA battery, preferably with out any type...
Hi to all! I have a laser diode from a laser printer (HP 3L as far as I know). I'm desparingly looking for a datasheet for it but can't find any info. not even...
... I might add that those who are subscribed to this list in digest format (like me) just get the whole thing through as a loooong piece of base64 encoded...
fred If u dont know the about antenna theory . Please dont show the others that u need 4 to six years degree ,,,,,,,,,,, hehehehehe ... To: Multiple...
hi, any body help me how to make a helical array or how to connect 4 helical antenna in the form of array on one base plate, thanks in advance for ur replays ...
Help identify parts. Looks like a crystal diode (1N4148) but with no identifiable markings, no color bands etc but has this PCB overlay marking: See attach...
Hi Chipdir members! I was trying to figure out how to make a 8051 multiprocessor communication. Basically, for varibale baud rate, there are 2 different...
Well as far as I know it is an Australian clone (of perhaps a Tektronix but I'm not sure). I'm up for the challenge of fixing it, and need it any way since I'm...
Hi everyone, I have a couple of questions. 1) Can the inputs and outputs of the L293 motor driver be connected in paralell to increase the current output...
Hi Lists Greetings following are the 14 pin smd chips used in a linear encoder, (scale) signals from the opto sensors are fed to this prior to connections to...
Ah, another entry for my inbox reject filter. Bob ... -- Specializing in small, cost effective embedded control systems -- Robert L. (Bob) Smith Smith Machine...
Hello, I have to implement a controlled system which reads data from an inclination sensor ( analog) processes it and controls a stepper motor I am now looking...
Hi List thanks for all the responses. there r some list members who seem tobe on net and on the list for no good reason and they do not seem to follow that it...
... As you may remember from a couple of threads back in October I was downsized after 20 years. Seems to be the state of the world these days. One company...
You can find precision potentiometers with 10x360 degrees of travel, but I don't think you can find any non-stop potentiometer. If it is for a microporcessor...
Hi List, anyone has a datasheet of M54562 or can tell me where to find ? It´s a DIL18 from Mitsubishi, must be PNP type transistor array or OPTO-coupler, used...
I've a little project gone out which may require a cute hardware fiddle. It is battery powered. I have a pic, with the a/d reference one battery up (~1.5V),...
... Allow me to tell you 2 short stories. 1. My brother started out as a small partner in a law firm (The split was 80:10:10). He objected to the profligacy of...
Hi List, anyone can tell me where to find a linear precision potenciometer, with 360 degrees of electrical travel, and no stop (it can perform several turns in...
Hello. We are looking all around for information about these SMD chips, which I really do not know what their functions are. They are: 93051/xboja ---This...
I would like to replace a pair of 6v lantern batteries in a lantern with a sealed lead acid or gel cell battery and would like to know about charging them. I...
