Oscilloscope Survey
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Re: Oscilloscope Survey
You might want to pickup an older generic 'scope handbook. There are many such measurements outside of looking at TV wave forms that are useful. One such measurement I occasionally make is using the scope to see the power transformer spike in a vibrator supply and tweaking the buffer capacitor for best performance.jukeboxman wrote:i have 2 but have never found the nerve to try to understand how to use them--what probe for what and so forth-perhaps this winter
Chas
Chas- Member
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Age : 73
Registration date : 2008-07-24
jukeboxman- Admin
- Number of posts : 200
Age : 67
Registration date : 2011-11-04
Re: Oscilloscope Survey
I just picked up a Sencore SC3100 100meg scope. I really like it but the Sencore probe that came with it doesn't work so I am looking for Sencore probe 39G292. Anyone have at least one. This is a low capacitance 10X probe. If you have a Sencore 39G294 from a SC3080 will work as well. Any suggestions, Let me know. Thanks
Spivey- Member
- Number of posts : 53
Registration date : 2012-10-13
Re: Oscilloscope Survey
Just get any decent quality low capacitance scope probe. Adjust the compensation capacitor in the probe to get the cleanest square wave you can get.
Polaraligned- Member
- Number of posts : 19
Registration date : 2013-02-17
Re: Oscilloscope Survey
I do more audio amplifier design/build/restore than radio work, so use a 'scope here a lot.
I've had a few nice Teks over the years, but sold them all as too big for the workbench. My daily driver is now a cheap RAMSEY BS-625. But I rarely use the 'scope on radios as waveforms mean little and analog instruments are easier to use, e.g. a VTVM. One exception is checks on B+ hum. Another would-be exception is FM discriminator and Ratio Detector alignment... I would use one here, but don't a I don't have a sweep generator for the X deflection! My "work around" is to use a very stable signal generator (digital readout) from about 10.6 to 10.8 MHz and "iterate" the final IFT core settings so as to plot a good "S-curve"... IMHO, you have to develop a knack to do this!
Just remembered another 'scope use in radios... I made up a diode probe to chase RF, but I hardly ever use it.
Cheers,
Roger
I've had a few nice Teks over the years, but sold them all as too big for the workbench. My daily driver is now a cheap RAMSEY BS-625. But I rarely use the 'scope on radios as waveforms mean little and analog instruments are easier to use, e.g. a VTVM. One exception is checks on B+ hum. Another would-be exception is FM discriminator and Ratio Detector alignment... I would use one here, but don't a I don't have a sweep generator for the X deflection! My "work around" is to use a very stable signal generator (digital readout) from about 10.6 to 10.8 MHz and "iterate" the final IFT core settings so as to plot a good "S-curve"... IMHO, you have to develop a knack to do this!
Just remembered another 'scope use in radios... I made up a diode probe to chase RF, but I hardly ever use it.
Cheers,
Roger
analogdino- Member
- Number of posts : 18
Registration date : 2013-06-17
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