Search found 18 matches

by ampedtech
Sat Apr 16, 2005 7:04 pm
Forum: General Discussion
Topic: Using Inverters with Auto Batteries
Replies: 15
Views: 2505

Re: Using Inverters with Auto Batteries

get the generator
by ampedtech
Tue Apr 12, 2005 5:17 pm
Forum: General Discussion
Topic: logic circuits run from 12 volt car batteries
Replies: 15
Views: 2558

Re: logic circuits run from 12 volt car batteries

go to the hobby store and get "rocket fuses". They are like a match head with two wires coming out. They use very little current and only for a moment, cause when the "match head" stuff goes the circuit is broken. To attach, fray the end of the fireworks fuse so a little of the power is showing. I t...
by ampedtech
Sat Oct 04, 2003 6:34 am
Forum: General Discussion
Topic: Solder Stations Who/What/Where to buy?
Replies: 3
Views: 685

Re: Solder Stations Who/What/Where to buy?

Get a solder sucker. This device is a hand held, spring loaded, one-shot vacuum piston type pump. Once cocked, melt the solder to be removed, place the nozzle of the sucker as close to the solder as you can and press the release. You may need to suck the same joint more than once. A trick that I’ve ...
by ampedtech
Fri Oct 03, 2003 4:25 pm
Forum: General Discussion
Topic: physics ?
Replies: 21
Views: 3376

Re: physics ?

I can’t help it, I feel compelled to make a contribution here. This is for all of you that don’t know physics, but it’s also for all of you that do!<p>Take a LARGE tumbler fill it with really cold ice pour your favorite liquor over the ice until the glass is almost completely full. Now drink the ent...
by ampedtech
Sun Aug 24, 2003 10:11 am
Forum: General Discussion
Topic: Need help with DC-DC conversion
Replies: 11
Views: 1926

Re: Need help with DC-DC conversion

Chris Smith writes: “First you need to change the DC into a wave form like square wave pulsed DC using an oscillator like a 555. The right frequency for the right transformer is essential for maximum saturation and conversion. “<p> I’m kind of rusty here so this is for my clarification . I agree tha...
by ampedtech
Fri Aug 08, 2003 12:41 pm
Forum: General Discussion
Topic: *** Need Help Choosing a Tektronix Scope ***
Replies: 26
Views: 4477

Re: *** Need Help Choosing a Tektronix Scope ***

BeatleFred, Check out Tektronics new line of digital storage scopes. It is a digital SAMPLE scope so it will behave like an analog scope (not a single sweep like a crt storage scope) or a storage scope (holds several wave forms). I to, was looking for something like you are and when I saw the price ...
by ampedtech
Wed Jan 22, 2003 9:02 am
Forum: General Discussion
Topic: PIR portable alarms
Replies: 5
Views: 1555

Re: PIR portable alarms

Smitty, I do not know what “PIR portable alarms” are, but I do have a recommendation. If you are in the build process on your home NOW is the time to hardwire ANYTHING that you may even think you may even remotely want. Alarm stuff is typically low voltage and therefore escapes the requirement for c...
by ampedtech
Thu Jan 02, 2003 1:19 pm
Forum: General Discussion
Topic: solenoid coils AC? DC?
Replies: 1
Views: 519

solenoid coils AC? DC?

I have some solenoids that are rated at 14v AC 60Hz (low current).
Can I use DC?
Why or why not?
Draw backs?
by ampedtech
Wed Dec 11, 2002 11:23 pm
Forum: General Discussion
Topic: Capacitor discharge circuit
Replies: 7
Views: 1139

Re: Capacitor discharge circuit

Make the techs buy their own meters. Trust me, they'll remember.
by ampedtech
Fri Nov 22, 2002 7:50 am
Forum: General Discussion
Topic: ac grid sensor needed
Replies: 3
Views: 1068

Re: ac grid sensor needed

Max
Ned gives good advice.
my suggestion would to use a relay rated "continous duty" That means that the coil in the relay can be energized all the time. A relay not designed to be on all the time might (most likely will) burn out.
by ampedtech
Mon Oct 07, 2002 10:21 am
Forum: General Discussion
Topic: Looking for mains transformers
Replies: 5
Views: 1080

Re: Looking for mains transformers

I've had good luck calling wholesalers and asking for a sample. Get a hold of a sales person and ask! Don't be afraid to ask for several of the same item. They might ask what company you are with. I'm a weasel, I'll say just about anything to get what I want. If this tact ain't your thing, tell them...
by ampedtech
Wed Sep 11, 2002 9:56 am
Forum: General Discussion
Topic: Home Energy - Generator Intertie?
Replies: 7
Views: 1507

Re: Home Energy - Generator Intertie?

check out a mag called "home power"
http://www.homepower.com/ :D
by ampedtech
Fri Aug 23, 2002 8:58 am
Forum: General Discussion
Topic: CMOS and BIOS
Replies: 4
Views: 1091

Re: CMOS and BIOS

bobsRAC is right on!<p>check out NUTS and Volts on line Encyclopedia<p> http://www.nutsvolts.com/Encyclopedia.htm <p>you might look at cmos or TTL as a discription of the eletrical characteristics of a manufacture process.<p>voltage levels, current consumption, fan out (how many like inputs can be s...
by ampedtech
Tue Aug 13, 2002 4:29 pm
Forum: General Discussion
Topic: If you responded below, Pls read my responce
Replies: 1
Views: 656

If you responded below, Pls read my responce

IN RESPONCE TO <p>a little design help...<p>I like playing with stuff too, but what you suggest is a fire bomb in your house. No disrespect intended. United Labratory and the uniform electrical code exists for a reason. (Go to their web sites and read their mission statements) Now let me whip an old...
by ampedtech
Tue Aug 13, 2002 4:20 pm
Forum: General Discussion
Topic: A little design help...
Replies: 18
Views: 3400

Re: A little design help...

I like playing with stuff too, but what you suggest is a fire bomb in your house. No disrespect intended. United Labratory and the uniform electrical code exists for a reason. (Go to their web sites and read their mission statements) Now let me whip an old school phrase on you. <p>FAIL SAFE<p>So you...