| Forum Home | ||||
| PC World Chat | ||||
| Thread ID: 56477 | 2005-04-06 03:37:00 | A technical challenge :) | B.M. (505) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 342073 | 2005-04-06 03:37:00 | I’ve got an elderly (about 30 years old) Hioki A-10 multi-meter with a open circuit resistor in the ohms X 1 range. Now, whilst I have a circuit diagram for the meter, Murphy would have it that the only value missing on the diagram is the open circuit resistor! Unbelievable! :rolleyes: Anyway, I thought if I could upload the diagram somewhere some of you familiar with Ohms law may like to have a crack at calculating the value. I’ve had a go but have little faith in my calculations given that I was never a gun at multiple resistors in series and parallel. :) (Anyone remember that Cubic Ohm test?) :p Any takers???? Cheers Bob |
B.M. (505) | ||
| 342074 | 2005-04-06 04:04:00 | I'd just cheat. ;) Put a potentiometer in place of it, and "measure" a resistor which should give half scale. Turn the pot until it reads exactly right. Then buy a $10 or $12 digital meter, and measure the pot. (Then just use the digital meter for measuring resistance. :) ) | Graham L (2) | ||
| 342075 | 2005-04-06 04:30:00 | Very good Graham . :) Now why the hell didn't I think of that . :mad: Don't even have to buy the digital! :p |
B.M. (505) | ||
| 1 | |||||