Search found 216 matches

by perfectbite
Sun Aug 08, 2004 10:52 pm
Forum: General Discussion
Topic: Stray 110 voltage
Replies: 16
Views: 3529

Re: Stray 110 voltage

Per JS I also have a Knopp K-60 'wiggy' and a digital Fluke T5-600. What I have found is that the Fluke won't trip a GFI (GFCI) on a voltage reading, Line to Ground (black wire to green wire) because it 'sips' so little current to register the voltage. The Knopp however will trip a GFI on a line to ...
by perfectbite
Sun Aug 08, 2004 3:20 am
Forum: General Discussion
Topic: Stray 110 voltage
Replies: 16
Views: 3529

Re: Stray 110 voltage

As Chris says:<p>"This is not uncommon."<p>Even the voltage frequency off a phone line will, if it starts ringing when you are holding the bare wire(s) and the conditions are right, stop your heart (it interferes with your heart's sinus rythm). Low amperage, 50 Hz (European Hz) can be lethal. Like t...
by perfectbite
Fri Aug 06, 2004 8:36 am
Forum: General Discussion
Topic: Reversing Rotation of 115V Table Saw Motor
Replies: 19
Views: 4059

Re: Reversing Rotation of 115V Table Saw Motor

Mike, As you have probably realized by now there are 2 types of motor wirings. One internal to the motor and basically hard-wired, and one to make the power connections which, depending on the motor's application, (110/240. CW/CCW) are user accessible 'soft 'wired. One of the reasons Dean wrote: "Th...
by perfectbite
Thu Aug 05, 2004 3:00 pm
Forum: General Discussion
Topic: Heating Element Question
Replies: 9
Views: 1583

Re: Heating Element Question

Try modifying a 2 'D' cell size flashlight body. Lots of space, lots of energy. No frequencies though or the birds really will get agitated.
by perfectbite
Tue Aug 03, 2004 8:16 am
Forum: General Discussion
Topic: Power Supply
Replies: 7
Views: 1504

Re: Power Supply

camino75080, If you aren't averse to spending some money there is, on the market, an imported (Italian I think)110VAC, 5 to 90 Amp solid state machine that comes with a TIG torch. (The gas and regulator are up to you.)<p>I highly recommend this machine (an all position, straight or reverse polarity ...
by perfectbite
Mon Aug 02, 2004 10:11 am
Forum: General Discussion
Topic: DC to AC, low voltage, high amperage.
Replies: 5
Views: 1122

Re: DC to AC, low voltage, high amperage.

Miguel, This welder doesn't have a transformer. It is not a wire feed welder so it is small enough, 6 foot cables, ground clamp and pliers that it will fit into a bread box. I think it is an Italian design (it says 'made in CU'). It directly chops the 60Hz, 110VAC voltage down and boosts the amperag...
by perfectbite
Sun Aug 01, 2004 10:08 pm
Forum: General Discussion
Topic: DC to AC, low voltage, high amperage.
Replies: 5
Views: 1122

DC to AC, low voltage, high amperage.

Well, relatively high amperage anyway. <p>A while ago I bought a 110VAC about 17 OCV, 5 to 90 Amp DC welder. (It's a good little welder, lightweight and very controllable). It came with a TIG (Heli-arc) torch and I bought an Argon bottle and regulator. Presently I can TIG weld Stainless steels but n...
by perfectbite
Sat Jul 31, 2004 10:33 pm
Forum: General Discussion
Topic: sensing wall studs through tile over plaster and lath.
Replies: 14
Views: 2394

Re: sensing wall studs through tile over plaster and lath.

Thanks Mike. That's a keeper idea. As it was the bathroom had been modernized and the studs were easily locatable by tapping. I had visions of an old cast iron claw foot bathtub and ye olde bathroom but it was very easy and the 82 y.o. lady was overjoyed. All jobs should have such customer satisfact...
by perfectbite
Sat Jul 31, 2004 10:08 pm
Forum: General Discussion
Topic: P.C.Board design
Replies: 18
Views: 3426

Re: P.C.Board design

Russ, Try a 4" carbide tooth blade and don't expect a high rate of cutting speed. Dremel used to make 4" circular saw blades but seems to not now. In a pinch the roto tool (Home Depot) has a diamond 4" blade but the centre hole may have to be enlarged or bushed out to fit the spindle on your Harbor ...
by perfectbite
Fri Jul 30, 2004 12:54 pm
Forum: General Discussion
Topic: another dumb LED question.
Replies: 5
Views: 960

Re: another dumb LED question.

Thank you Mr. Al and wd5gnr (the other Mr. Al). I can do the math but my question is: <p>If the voltage is acceptable to the component. Does it make a difference if an amperage limiting resistor is placed before or after the component in that simple looped circuit? <p>Obviously if I have a 12VDC pow...
by perfectbite
Fri Jul 30, 2004 12:15 am
Forum: General Discussion
Topic: another dumb LED question.
Replies: 5
Views: 960

another dumb LED question.

In a very simple circuit: + 4.5 Volt source, resistor, LED. Given that an LED is an amperage dependent device does it matter if the resistor is positioned before or after the LED? In other words, for that circuit's voltage won't the resistor limit the amp flow if the resistor is before the LED or af...
by perfectbite
Thu Jul 29, 2004 2:09 pm
Forum: General Discussion
Topic: electronic scarecrow
Replies: 25
Views: 4267

Re: electronic scarecrow

Morgen, Animals are very smart and will figure out a fixed time cycle. Perhaps a variably timed motion activation with the occasional flashing of lights and a squeak or two and no movement in between motion activations will deter dem little critters from investigating your stash. The motion and ligh...
by perfectbite
Thu Jul 29, 2004 8:52 am
Forum: General Discussion
Topic: sensing wall studs through tile over plaster and lath.
Replies: 14
Views: 2394

Re: sensing wall studs through tile over plaster and lath.

Thanks Chris. About 3/4s of the way down on this link's page is a 'Ringwood Newel post rail' which would be handy for healthy adults and children if you haven't seen it before. (It takes a while to load with a 56K modem and the exchange rate may be different.) Teenagers swinging on it big time could...
by perfectbite
Wed Jul 28, 2004 8:54 pm
Forum: General Discussion
Topic: sensing wall studs through tile over plaster and lath.
Replies: 14
Views: 2394

Re: sensing wall studs through tile over plaster and lath.

Chris, Web searches for me are like looking through a 6 million page yellow pages directory. Phrasing the right bloody question takes forever. Wading through the English speaking results takes another forever. It is good to know that they exist. I'll keep an eye out for them. Thanks.
by perfectbite
Wed Jul 28, 2004 6:23 pm
Forum: General Discussion
Topic: sensing wall studs through tile over plaster and lath.
Replies: 14
Views: 2394

Re: sensing wall studs through tile over plaster and lath.

Chris, can you recall a name or where you came across the 'mushroom' toggle bolts? That would be very handy for future reference. <p>A clean, slightly irregular 1" hole in tile isn't impossible but I'd still have to know where the studs are for the 'mushroom' to clear them. <p>Jolly Roger, I bought ...