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Pgram

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About Pgram

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  1. Hi all, I'm using WOS 1.3 and I like it very much. I had some problems (freezing oscilloscope view) on a particular laptop (Lenovo with Realtek soundboard) so I moved it to an Asus Laptop; no more problems. I noticed that my old Timetrax ticking sensor was picking up a lot of noise from the surrounding ambient, surely related to 50 Hz mains and other sources, like LED lights. I looked at the cable connections: There were only one "hot" wire and a shield, connected to both the piezo ground side and the plug ground side. That creates what Audiophiles call a "ground loop", acting as an antenna to pick up the noise. So I replaced the cable with a good quality shielded Microphone Cable, with two wires inside and a good shield. The shield was connected ONLY to the plug ground side, and left "floating" at the sensor side; that's the important trick. Now the noise is reduced to near zero; I checked with an oscilloscope, and by hearing it at the output of the Timetrax amplifier. Hope that this will help some of you, Paolo from Italy
  2. Hi all, I'm a newcomer, trying to learn the art of watch repairing. I have half a dozen Molnija 3602 and I'm practising on them. The problem is, I need to locate a supplier for a few hairsprings and at least two complete balance. Some of those 3602 that I acquired are missing them. Can anybody help me? Thanks in advance, Paolo
  3. Hi All, My name is Paolo Gramigna, I'm 73 years old and I'm from Italy. After many years, since I'm now retired, I restarted an old hobby and I'm trying to learn how to repair pocket watches, and probably I'll build a pendulum regulator. I'm collecting now the tools, and I'm starting with "easy" pocket watches, not very expensive. I hope to find advice and experience here! Paolo
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