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Old 17th July 2011, 03:52 PM   #11
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He just got back with me, it's a 10mhz scope and no probes, just a homemead RCA connector. It seems, as stated above, that 20mhz is a good starting point. Is this still useful?

I'm still trying to figure out what exactly a mhz means on a scope.



Edit: OK, now that I know human hearing goes up to 20kHZ, this scope only covers the lower half of that....since I often have problems at higher frequencies with what few amps I've built, would this be useful to me in my limited space of a hobby room?

Last edited by caxxxxxx; 17th July 2011 at 04:21 PM.
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Old 17th July 2011, 03:56 PM   #12
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Buy it! eBay it if you ever want to get rid of it, you'll get more than $50!
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Old 17th July 2011, 08:19 PM   #13
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Location: Victoria, BC
Quote:
Originally Posted by caxxxxxx View Post
He just got back with me, it's a 10mhz scope and no probes, just a homemead RCA connector. It seems, as stated above, that 20mhz is a good starting point. Is this still useful?

I'm still trying to figure out what exactly a mhz means on a scope.



Edit: OK, now that I know human hearing goes up to 20kHZ, this scope only covers the lower half of that....since I often have problems at higher frequencies with what few amps I've built, would this be useful to me in my limited space of a hobby room?
10mHz will be fine for your audio projects.
You can do a lot of work with wire and alligator clips; pick up a cheap probe on 'the bay' later.
Buy it or it will be gone...


m=million
k=thousand
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Old 19th July 2011, 09:19 PM   #14
macboy is offline macboy  Canada
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You may also get more than $50 out of the frequency counter, working or not. Some people love those old nixie tubes that its display is made of.
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Old 19th July 2011, 10:31 PM   #15
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Quote:
Originally Posted by VictoriaGuy View Post
10mHz will be fine for your audio projects.
You can do a lot of work with wire and alligator clips; pick up a cheap probe on 'the bay' later.
Buy it or it will be gone...


m=million
k=thousand
Not for being a stickler and not to offend anybody, but just to get things (upper case and lower case) right, which is important IMHO:

m = milli (1/1000)
M = Mega, 1.000.000 (million)
k = 1000 (thousand)

An example: 10 mHz is 10 milli-Herz and not 10 million Herz.

Karsten

Last edited by Karsten Sømand; 19th July 2011 at 10:40 PM. Reason: Typo
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Old 20th July 2011, 08:18 AM   #16
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Quote:
Originally Posted by Karsten Sømand View Post
m = milli (1/1000)
M = Mega, 1.000.000 (million)
Absolutely correct! Thanks.
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