Tweet
I guess the OP means 0.5M (=500k) - not 0.5m (=0.5 milli Ohm).
-
-
Yes. I've been down this road with him before. His meter is auto ranging and seems to show results for resistors in the 100's of k ohms as a decimal increment on the Megohm scale.Originally posted by Helmholtz View Post"Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." HelmholtzComment
-
Ill recheck it shortly with a spare non-autoranging DMM and post.Originally posted by Helmholtz View PostComment
-
Specifying/displaying 500k as 0.5M is correct.Originally posted by ca7922303 View Post
Just don't use a lower case "m".
M means Mega, m means milli.- Own Opinions Only -Comment
-
-
Installed a 1000pF 400v film capacitor I had @ C18 and I believe it is quiet enough to record with now. Thanks for the great help as always. Really appreciate it!Originally posted by g1 View PostComment
-
Ah, the old milli/Mega mistake.Originally posted by Helmholtz View Post
Less weird now, and dare I say – quite normal.If I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.Comment
-
C18 should actually be 10000pF. 1000pF will attenuate frequencies below 340Hz, so lower hum.- Own Opinions Only -Comment
-
You beat me to it (drat).Yes, it's very probable the "reduced" hum is analogous with reduced gain @ frequency. So this is not a good solution unless a new 10n cap for C18 also reduces hum.Originally posted by Helmholtz View Post"Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." HelmholtzComment
-
It would take rather sophisticated lab equipment to (reliably) measure 0.5mOhm.Originally posted by SoulFetish View Post- Own Opinions Only -Comment
-
indeedOriginally posted by Helmholtz View PostIf I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.Comment
-
Strangely though, I absolutely CAN detect such subtle measures of resistance from my wife.Originally posted by Helmholtz View Post
But I'll concede that it would take sophisticated lab equipment to understand why."Take two placebos, works twice as well." Enzo
"Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas
"If you're not interested in opinions and the experience of others, why even start a thread?
You can't just expect consent." HelmholtzComment
-
Like the others said above, 1000pF is the wrong value (.001), should be a .01 there which is 10nano or 10000pico Farads.Originally posted by ca7922303 View PostOriginally posted by Enzo
Comment
-
Yeah, I grabbed what I had on hand to see if it would lower the hum and it doesn't seem to have effected the gain any. I'll order the correct one and install it. Maybe it was the problem and didn't correct due to the wrong value cap. Thanks.Originally posted by g1 View PostComment
-
At Fairchild we had a four-point probe for this sort of thing. Don't know how to (safely) implement one for Mrs. Chuck...Originally posted by Helmholtz View Post
This isn't the future I signed up for.Comment
Comment