does anybody have expiearance with one of these. Its a lost skill. And Larry, I know you wont be able to referance me a past thread on this one. But if anyone has any instructional litature to referance that would be appreciated. Ive looked and found some info but was not helpful. Like what type of leads to use. Or if the item im testing needs to be powered on or not. Its been a dream of mine to actually use this thing onece to justify having it for 20 yrs now.
Definitely not a lost skill. Scopes are used almost daily by "A" level techs. Scopes come standard with most decent scan tools. Talk to a few decent techs and they should be able to help.
I use one often, almost daily. I'm not familiar with that particular unit. Any oscilloscope, in its most basic form, is used to graph voltage over time. It appears that it might be a digital storage scope, which is a very good thing. That makes it useful for grabbing quick waveforms using the trigger function. It actually records them in memory and displays them continually, instead of relying on the voltage to be present to display. Here's an example of use: I had a large punch press that would randomly go into a stop condition. There were 3 separate stop lines on this thing, with LEDs on the safety control board showing their state. Whatever was happening was happening so fast that you could not see it on the LEDs. I set up an oscilloscope on each channel that would trigger on a negative-going edge. It quickly became apparent which line was dropping out. It happened to only be for .010 seconds (10 milliseconds) which is why I couldn't see it happening, but the scope grabbed the waveform.
By the way, the scope I was using in the example I gave was something like this: https://www.adafruit.com/product/468 Less than $100. There is really no need to keep one of these antiquated monsters around any more. A little pocket scope like this can be used to troubleshoot most stuff you will find on your car (like sensors and pulse train outputs from reluctor wheels and the low voltage side of ignition modules).
I have a T932 with the manual which is almost identical. They come in handy once in a while. The tricky part is getting the horizontal sweep and sync where you need it, amplitude speaks for it self. You'll need probes.
An oldie but goodie. Analog oh sweet analog. Find a good signal generator and then begin to play. Im sure there are videos on youtube to help, maybe not your specific model but enough for one to learn. All O-Scopes operate on the same principles. Use the signal generator to hone your skills to properly set up and understand how well the scope works BEFORE trying to actually do something useful like troubleshoot a circuit. OR simply turn it on and let it destroy itself like most prop techs do on most scifi shows (drives me nuts they do this).
To answer one of your Q's, you need BNC type connectors for your leads to plug in, the other end can be "gator clips" or anything else you want. This is by no means a high freq unit. and it appears to be single trace. See the link embedded in the bold text.
I use a handheld scope about 1000 times a year testing wave forms on electrical stimulation machines.
Im trying to use my scope for repairing older tube guitar amps or hybrid tube amps. I use a fluke 233 daily and can check diods, capacitors, and ohms. I have a pulse transistor checker but the transistor needs to be removed from the curcuit board. When a capacitor is checked on a board the reading is not the same as when removed. With all the other stuff on a circuit its usually higher . so if it reads lower than what its rated for by more than 10% is that cause for replacement? I able to follow the path and check along path the diffetent. Resistors, capacitors many different types, transitors, but realy not sure about my readings because of all the other stuff on a board affecting my meter.
For muscle contraction... Russian. If you have the balls to turn it way up, you never have to leave the sofa for the workout of your life. But that is not its intent. Set it to 10 second on and 50 seconds off. You can guess why you have a 50 second reprise.
The scope really isn't for testing individual components. It's for probing waveforms in a powered circuit. Be careful with tube amps that your scope probes and input are ok with some of the voltages you will be probing. They can be 580V in a 6l6 type amp, and even higher with some other tube types. Please be careful, you can really hurt yourself. For amplifiers, you typically want to inject a sine wave into the input. For a guitar amp, 0.5V peak at 1Khz might be a typical max value for a passive pickup to generate. You would then follow that through each gain stage and see if the waveform is correct, based on the stage gain. A square wave can be used to test for stability and frequency response, particularly in home amplifiers with feedback. A square wave tends to excite instabilities in the amp and may push it into oscillation if something isn't quite right. An ideal output will have the rising edge of the wave slightly rounded at 10Khz with no overshoot. Overshoot indicates marginal stability.
