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1C15 official FNIRSI store: https://s.click.aliexpress.com/e/_oED... Hello everyone, today I received a new parcel from China. This is the legendary FNIRSI 1C15 oscilloscope, let's look at its functionality, how it works, and also test it with a large frequency generator. An oscilloscope is a necessary thing, it is much easier with it both during the development of some device, and during the repair of equipment and during adjustment. An oscilloscope is now needed not only by an amateur radio electronics engineer, but will also be useful for an auto electrician. If you have such an oscilloscope, I will be grateful for your comment, write what you think about it and where it helped you in what repairs, developments. It would be interesting to read.