Electronics Forum / Electronics / October 2005

Does anyone in this NG have any experience or ideas as to how a fax machine
can be connected to a CDMA telephone for use in a vehicle?
JD

I've had a few ATX supplies die because they don't turn on using the
mobo controlled soft switch.  Does anyone know of a likely cause?  How
about a typical schematic for this circuit?  
Tx, Matt

Anyone know what the story is with the username / password arrangement thats
been added to the SC downloads page as of October 2005 ?
September and earlier doesn't have it......
What gives ?

Hi, I need someone who knows a little about LM350 voltage regulators...
I'm referring to the data sheet on this website:
http://www.national.com/ds/LM/LM150.pdf
*** Page 10 - "12V Battery Charger" ***

Thanks for all of your replies. As David showed me, there's more than one
online provider of pcb's. Guess I jumped the gun by getting enthralled by
the first one I discovered. I downloaded the layout tools from all of them
and they all look and work very much alike. But as I ...

       was watching hogan's hero's and was wondering how they could of made
a fm bug back then all those years ago let alone there reciever
matt

Does anyone in this ng subscribe to "Servo" magazine (http://www.servomagazine.com/index.php) ?
What is it like? How substantive are the articles?

I am trying to regulate my dc voltage of 5.8-6.5Vdc supply to a 5vdc
I want to use the LM7805 regulator, not sure the minimun inpu
voltage spec.. Do anyone know th
minumun input voltage needed to ensur

Hey, everyone:
I am trying to design a voting system for a small group of people (like
20 or less) which can summarize the voting results immediately after
each person votes. The basic idea is that each person has some kinda

I've built a paddle-shifter controller for the electronically
controlled transmission on my car, but it seems to be having a bizarre
issue that came about after about a month of use operating properly.
Basically, there are two shift solenoids, solA and solB, and one lockup

Anyone ever heard of, or used this outfit?
http://www.pad2pad.com/index.php
I stumbled across the site while engaged in a fruitless online search for
someone in Australia who could lay out and make a pcb for me.

HPM have a wireless door bell system D641/PILR (70M range) that is
programmable up to 6 separate stations/frequencies, however we need to have
12 separate stations/frequencies as there are 12 rooms.
Has anyone had any experience with these and has managed to get them up to

I have an older model 12 volt peg perego which runs on 2 -6volt
batteries. The nine wires are disconnected and I have no idea how to
put them into the two switches to make it run again. One switch has 6
prongs the other has 3 prongs. The wires colors from one battery is

Hey all--
I'm looking to build a power supply for a mobile robot. I want to build
a battery-based supply that can recharge the battery when plugged into
the wall while supplying power for the robot at the same time. The long

An embedded project I'm working on requires the ability to
read the status of up to 64 input ports - but obviously I
want to use as few of my microcontroller pins as possible.
Somewhere I heard of devices called 'sequencers' or something