There's probably a resistor in the meter to limit current. The problem with using a capacitor without more circuitry is that it must be really big, like a...
If it swings around a lot it's probably a moving iron meter (there was a period of using hot wire meters but those are inherently very nicely damped) because...
Do you have the how-to for that? If so could you post it, I lost it some time ago and never found it again. Thanks! ... From: geo_k02 <geo_k02@...> ...
... problem ... resistor ... would ... large ... swing ... amp ... your ... the ... swing ... this ... axccesible ... have replied earlier have been away for a...
Hello again Charles OK have found out what an op amp is - local supplier has not got CA3160 but has CA3140E - 4.5 MHz slew rate 9v/us, 15v - will this suffice?...
Is there an archive with the older schematics from techlib.com??? I am in the process of working on several projects and was referring to teh web for...
... Actually - from the picture on the above web site, each transistor has its base & emitter shorted together. One of the transistors ... the left one, has...
You are right - I tried his Techlib web page to look at for the ionization detectors and Charles seems to have taken the whole techlib.com site down. I can't...
... Almost all DMMs, on a Voltage measuring range, appear at the meter input to be a 10Meg resistor. If in doubt, check the meter specifications under "input...
Good test. I would suggest snapping two 9 volt batteries together to increase the test voltage. Since Craig has done the hard work of fully explaining the...
Yes but ... With your 2x 9V batteries and 15mV: Rx= ((18v-0.015v)/.015v)*10e6 Ohms = 11.99 Gigaohms (sorry - but I couldn't *RESIST* this reply) Allen ... to...
Here's another idea to experiment with that doesn't involve as much math. This is based on Craig's and Laurie's (and Mr. Ohm's) ideas: (1) A DVM with a 10 Meg...
That's good one too. Of course you could also measure the current directly. Â Regarding the meter resistance I just tested the only consumer grade meter I...
-Checked my DMM's My Tripplet Fancy dandy true RMS with all the bells and whistles measures 10.8 megohms. My $12 "wally mart special" measures 10.2 megohms. ...
... I checked a couple of meters around here for current - one good (quality) Fluke meter could only go down to 1uA in the last digits place. Two others (less...
For a couple of weeks I've been doing battle with hackers in my server thanks to a virus backdoor. I think I've got them all out. I think. Their favorite...
The site should be back soon, maybe today. We're bringing up a new server and will redo the old one to have as a standby the next time our hacker friends...
I'm trying to build the top circuit on the game circuits page. I'm trying to use LEDs instead of the lamps and I cannot get it to work properly. I'm using...
... This circuit (first one on this page): http://www.techlib.com/electronics/games.html I haven't built that circuit. Some specs from the parts in the ...
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