All of the knobs are for reading, there is a section in the lower right
for calibration (signal generation) that I didnt take a picture of.. The
signal you see on the scope is generated by me. I have not way to
measure peak to peak that I can tell. The calibration didn't seem to
have any of generating specific frequencies, which would do the job for
me. I really like this ancient bit but I think it's not up to today's task.
-Rolf
Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310 wrote:
Doesn't make much sense that an O-scope can't measure freq. I looked at
the pix and the only controls I see seem to be related to signal
generation, none of them seem to be for measuring.
Again, how do you know this is an O-scope? Is there a name plate that
says something like "Mark 5 Mod 0 Oscilloscope"?
Max
-----Original Message-----
From: mercedes-boun...@okiebenz.com
[mailto:mercedes-boun...@okiebenz.com] On Behalf Of winmutt
Sent: Thursday, September 10, 2009 8:55 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Oscilloscope
That is the fundamental problem with this scope. No grid. If you look at
the pics you can see the vintage....
-Rolf
Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310 wrote:
Can you measure the time between peaks? Usually there is a grid on
the screen and the horizontal axis it time. Hz equals cycles per
second, so if you can determine the time between peaks then some math
will tell you how many Hz you are measuring.
Are you sure this is an oscilloscope and not some other device like a
signal generator? More pix please of the whole front and all the
controls!
Max
-----Original Message-----
From: mercedes-boun...@okiebenz.com
[mailto:mercedes-boun...@okiebenz.com] On Behalf Of Rolf Martin-Hoster
Sent: Thursday, September 10, 2009 6:43 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Oscilloscope
Seconds? Division? Thats fancy talk. When I mean antique I mean
Korean?
war. Here are some pics.
http://winmutt.com/images/scope/
I did think about using AC 60hz as a calibration.
Pretty sure the CRT on this thing will give you cancer if you stand
infront of it heh.
Thanks.
-Rolf
Jim Cathey wrote:
I need to figure out if I am generating a 140hz signal with an
antique of a scope. Scope does not have any fancy setting like time.
It is a navy relic. How do I go about measuring the frequency? I
have
a signal showing 3 cycles with 100hz sweep. Do I need a better
scope?
Better is easier, but not absolutely necessary. How do you know it's
a 100Hz sweep? But the completely uncalibrated sweeps are difficult
to use for frequency. Usually the sweep speeds are in steps, X
seconds/division, and you just count the number of divisions and
multiply/divide. They're not uncalibrated.
But if it's an unmarked knob you'd only normally use that for
waveform
quality.
140 Hz is very close to C#3 on a piano. Compare it by ear?
Feed signal to a tuner? (Cheap frequency counter.) My Fluke DMM
does
Hz on AC.
-- Jim
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