| Author | Message | ||
     Evan Holdstock (evan) Intermediate Member Username: evan Post Number: 32 Registered: 5-2005 |
Is there anything that you can build from household items measure Watts | ||
| Simon Quellen Field (sfield) Senior Member Username: sfield Post Number: 394 Registered: 12-2004 |
A light bulb, a bucket of water, and a thermometer. | ||
| Evan Holdstock (evan) Intermediate Member Username: evan Post Number: 33 Registered: 5-2005 |
sorry not watts, i mean volts | ||
| Simon Quellen Field (sfield) Senior Member Username: sfield Post Number: 395 Registered: 12-2004 |
Here's a site that tells you how: "http://www.creative-science.org.uk/RS2therm.html" The goal in that site was to make an electric thermometer, but they first had to make a voltmeter. | ||
| Evan Holdstock (evan) Intermediate Member Username: evan Post Number: 36 Registered: 5-2005 |
Would you have to use the razor blade or can you use anything really. | ||
| Simon Quellen Field (sfield) Senior Member Username: sfield Post Number: 396 Registered: 12-2004 |
Any covenient very-low-friction hinge will do. | ||
| Evan Holdstock (evan) Intermediate Member Username: evan Post Number: 37 Registered: 5-2005 |
does the meter go up and down, or side to side? | ||
| Evan Holdstock (evan) Intermediate Member Username: evan Post Number: 38 Registered: 5-2005 |
Also, how the hell r u going to wrap a coil 5000 times! | ||
| Simon Quellen Field (sfield) Senior Member Username: sfield Post Number: 398 Registered: 12-2004 |
It looks like their version goes up and down. But again, questions about someone else's web site should be directed to that web site. As for winding 5,000 turns of wire, you simply take the wire and make it go around the coil form. Then do it again 4,999 times. It really is fairly simple. If you can do 5 turns per second, it will only take 17 minutes. Some people put the coil form on an electric drill, but the drill must have a slow speed mode or you break the wire. | ||
| Simon Quellen Field (sfield) Senior Member Username: sfield Post Number: 399 Registered: 12-2004 |
You can also avoid winding altogether by using the coil from a power supply transformer without unwinding the wire in the first place. Other good places to find ready-made coils are in relays and old aquarium pumps. |
