On 7/17/2011 12:09 PM, David Forbes wrote:
> On 7/17/11 10:37 AM, Mimewar wrote:
>> Does anyone here, know of a good  " I have an oscilloscope, but don't
>> have a clue how to use it" guide?  I have had it for over a year, and
>> now that I'm getting into more programming, analog/digital, and logic
>> circuits, I need to figure it out.  Any help?
>>
>> Shane
>>
> 
> The best way is to start poking the probe into low-voltage circuits, to see
> what's there. Of course, a knowledge of the circuit diagram could be helpful.
> 
> Back when I was a tiny tot, there were these things called television sets,
> containing tubes and/or transistors. A company called SAMS made these 
> wonderful
> repair guides called Photo-Fact schematic folders. They had dozens of
> oscilloscope traces printed right on the schematic diagrams, indicating what
> signal waveform and size to expect on each stage of the circuit. They also had
> photos of the chassis (PC boards or point-to-point wiring) calling out every
> component and every waveform's test point.
> 
> But these were television sets full of yummy high voltage, and the danger of
> getting a big shock or blowing up the scope probe was palpable.
> 

Or the manuals from Tektronix equipment from the 70s and into the 80s. Have to
say it was pretty cool to have a manual that included schematics, a pretty full
theory of operation, and service info.

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