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guidovelasquez

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guidovelasquez last won the day on November 6

guidovelasquez had the most liked content!

About guidovelasquez

  • Rank
    WRT Addict
  • Birthday 02/05/1965

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  • Gender
    Male
  • Location
    Guatemala
  • Interests
    Electrónica, Fotografía, Montañismo, Cometas

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  1. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Thanks for your comments and experience Frank. I also work with watches that it is necessary to move the collet. It is a very precise adjustment. And sometimes tedious because the adjustment can easily be exceeded or not knowing in which direction it should be done. Guido
  2. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Hi, Frank. Thanks for the data you share. I wish to clarify that I made a mistake in indicating the breadth in my publication. He had indicated an amplitude of 270 degrees. But it is not correct. What you publish is correct. Approximately 235 degrees. Excellent application It strikes me that in addition to indicating the value of beat error in milliseconds, the program also indicates it in degrees. According to my assessment that is very useful, because to correct it, it is necessary to pre-visualize approximately how much the collet must be turned on the balance wheel staff or how much movable stud must be moved. Thank you
  3. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Dear Sirs. I share with you a record recording of a Omega Lemania Caliber 9160A. 18000 bph stopwatch. According to my records it presents approximately 4.8 seconds of advance. The beat error is approx 0.2ms and the amplitude is 270 degrees or so. The elevation angle is adjusted by 41 degrees. I share it because someone can be useful. I also want to inform you that to pick it up I am using a caiman clamp to which I soldered a 27mm piezo electric disk with a modified PYLE PP444 preamplifier. In addition to improve the sound and filter unwanted noise I am using the applications for windows: PEACE + APO EQ I also leave a screenshot of the configuration. There are 30 seconds of recording that can be played as a loop. https://mega.nz/#!HaQFTSxA!FATJQ6XI8FYjQBBGqtPjvdVj1i6bZp7RwI5uBgaL7ng
  4. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Thanks for the suggestions Frank. Our limitations in the electronics benefit from your experience and knowledge. On a more modern IC, I have tried to find one that can work a low voltage and that does not require a "symmetrical" source of tension that complicated.
  5. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Thanks for the clarification. The circuit has not physically tested it. And I had the suspicion that it did not work on the edge of 3 volts. But the explanation is appreciated. I only have one question left and I appreciate the help: would it work with 5 volts from a USB port?
  6. guidovelasquez

    D. I. Y. Watch Timing Machine.

    This is the link to find it. https://mindsetsonline.co.uk/shop/mono-preamp-kit/
  7. guidovelasquez

    D. I. Y. Watch Timing Machine.

    This circuit option seems very efficient. Especially that the voltage can be from 3 volts to 25 volts. Mono Preamp.pdf
  8. guidovelasquez

    Beat error of 3135 Rolex

    About this: "Balance is just an instant of perfection, stability is more: it is the permanent probability that the balance is not far away" Harm van Veen. The Tao of Kiteflying
  9. guidovelasquez

    WOS mic & watch holder.

    Thank you very much for the valuable information you share with us. Can you please share an audio file so that you can compare the sound you get with the components you mentioned, please? Thank you
  10. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Thank you very much for your answer B52. And for the details that enrich our trials. I agree with you, it is necessary that you possess skills in the field of electronics and mechanics in order to obtain acceptable results. I have a question about the Junghas Cal 75 movement. Is it 18,000 BPH? Does it run within the acceptable ranges, that is to say, its error to march does not exceed more than 60 seconds? About the 90-year vintage movement, is it a bph that can recognize TG? regards Guido. Here example sund. Omega Seamaster De Ville +18seg aprox. https://mega.nz/#!uCIGzSTZ!OosG2VcTsj7uA8JDCczusvRjFTxIzMk5IVHAzD3UdCk
  11. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Thank you very much for your answer B52. And for the details that enrich our trials. I agree with you, it is necessary that you possess skills in the field of electronics and mechanics in order to obtain acceptable results. I have a question about the Junghas Cal 75 movement. Is it 18,000 BPH? Does it run within the acceptable ranges, that is to say, its error to march does not exceed more than 60 seconds? About the 90-year vintage movement, is it a bph that can recognize TG? regards Guido.
  12. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Hello B52. Thank you very much for sharing your experiences. We will have to test your project. However, in our limited knowledge and experience we have seen that what has worked best is the piezo electric disk. We know that it has its weaknesses, but even so it can be efficient. One of the reasons why we see that it is so, is that most time machines, use the principle of the vibration sensor instead of the microphone. For the same reasons that you have exposed: The background noise. We would like you to put us a piece of recording in wav or mp3 to check your results. Congratulations. And thanks for getting in touch with other elements that could be used. I would like to know if there is a pre-amplifier with a similar presentation to which you show us.
  13. guidovelasquez

    D. I. Y. Watch Timing Machine.

    Excellent document. Although you comment that it does not seem to be aesthetically good, for me it is. It's the best I've seen.
  14. guidovelasquez

    WOS mic & watch holder.

    Was expected. The sensor that we are looking forward to be tested is the one that JohnR725 has indicated to us. I am not surprised at all in your statement. Do not worry ... we've also lost time and money on devices like that. https://uk.rs-online.com/web/p/vibration-sensors/0285784/
  15. guidovelasquez

    WOS mic & watch holder.

    Gracias.
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