Products > Test Equipment
First Oscope
alm:
--- Quote from: naiclub on February 14, 2024, 08:15:38 pm ---Because most repair work I use to measure. It is a power converter from a battery. It is 220VAC electricity (in order to see a pure waveform). See that the waveform is not distorted. It must always come out beautiful and display a frequency of 50Hz.
--- End quote ---
I'd take a small 230V > 12V (or similar) transformer, and put it in an isolated enclosure with a mains lead on one end and test points on the other end. This allows you to measure frequency and shape without having to worry about the voltage, and also solves the grounding issue typically associated with measuring mains voltages.
PlainName:
--- Quote from: naiclub on February 14, 2024, 08:15:38 pm ---Because most repair work I use to measure. It is a power converter from a battery. It is 220VAC electricity (in order to see a pure waveform).
--- End quote ---
Everyone has different needs, but this thread is to help the original poster to pick something for his needs. And he tells us what they are:
--- Quote ---My usecase is measuring audio waveforms from audio amplifiers to look for distortion or clipping. Additionally, I'm interested in learning proper techniques for repairing amplifiers and other electronics, as my current methods are hacky and have limitations.
--- End quote ---
I don't see anything relating the mains voltage there, and the Zeewei should be fine. It would be a shame if you scared him off a useful scope because it wouldn't be suitable for your use.
naiclub:
I didn't make him afraid. I just want people who have had experience to share scopes that can answer many types of questions. This will be very useful for those who are amateurs like me.
And the wide range of uses will be a profit for the owner of the scope.
jonpaul:
From Cypres For nice old analog scopes, like Tektronix, I suggest to contact Qservice, in Greece.
https://www.qservice.tv/
The site has parts for repair of vintage instruments and electronics but contact
They might have some used old analog scopes.
If you can visit them you can see and save shipping.
Jon
naiclub:
--- Quote from: alm on February 14, 2024, 11:52:31 pm ---
--- Quote from: naiclub on February 14, 2024, 08:15:38 pm ---Because most repair work I use to measure. It is a power converter from a battery. It is 220VAC electricity (in order to see a pure waveform). See that the waveform is not distorted. It must always come out beautiful and display a frequency of 50Hz.
--- End quote ---
I'd take a small 230V > 12V (or similar) transformer, and put it in an isolated enclosure with a mains lead on one end and test points on the other end. This allows you to measure frequency and shape without having to worry about the voltage, and also solves the grounding issue typically associated with measuring mains voltages.
--- End quote ---
In this case, I made a tool. Composite tester for For measuring 220V electricity directly. To measure whether it is good or bad in the circuit.
Specifically used with the FNIRSI 1014D scope (but to be honest, it's very cumbersome).
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