Yes, it could, but it would probably be more work than it would be worth. There are timing machines available that do just that.
I still use one of those old machines, a Vibrograf B100. It is full of miniature tubes, and still works great. I use a coil of wire with a hundred or so turns, and a capacitor to resonate. I connect it to the input of a vertical amp plug in on my scope, and trigger the scope with a HP3336B. -Chuck Harris Max Robinson wrote: > I once saw one of the original machines used for adjusting balance wheel > watches. It used an audio frequency tuning fork oscillator and a series of > count downs to drive a drum at the rate the watch ticked. The watch was > placed on top of a microphone that picked up its ticks and caused a pen to > ink a paper chart on the drum. The pen moved along the axis of the drum at > a constant rate. The slope of the line showed how many seconds a watch > would gain or loose in 24 hours. I wonder if you could use an induction > coil to pick up the 32678 Hz from the quartz oscillator and trim it up. > Only in an older watch, I guess. > > Regards. > > Max. K 4 O D S. > > Email: [EMAIL PROTECTED] > > Transistor site http://www.funwithtransistors.net > Vacuum tube site: http://www.funwithtubes.net > Music site: http://www.maxsmusicplace.com > > To subscribe to the fun with tubes group send an email to, > [EMAIL PROTECTED] > > ----- Original Message ----- > From: "Didier Juges" <[EMAIL PROTECTED]> > To: "'Discussion of precise time and frequency measurement'" > <time-nuts@febo.com> > Sent: Saturday, December 01, 2007 9:17 AM > Subject: [time-nuts] Watches > > >> I believe watchmakers have a device they use to measure the vibration from >> the stepper motor or the escape mechanism and indicate if the watch gains >> or >> looses time. I am not sure how accurate that system is, and if something >> equivalent is in use on crystal watches. >> >> Chuck, can you tell us? >> >> My son's Bulova was at the repair shop for something like 3 months >> (August-November, I got it back last week) for what I initially thought >> was >> a dead battery (the watch was erratic). The watchmaker said a capacitor >> had >> to be replaced (did not ask which, I assumed it was the trimmer >> capacitor). >> He further said the factory sent the wrong capacitor 3 times, after which >> he >> decided to replace the entire movement instead, hence the 3 months and $60 >> repair (after discount). >> >> I am not sure if my son's watch is crystal controlled or some other >> system, >> I know some Bulovas used to use a mechanical tuning fork resonator >> (Accutron?) His watch is only 2 or 3 years old. >> >> Didier >> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] On Behalf Of Chuck Harris >>> Sent: Saturday, December 01, 2007 8:45 AM >>> To: Discussion of precise time and frequency measurement >>> Subject: Re: [time-nuts] Chronometer contest sponsored by >>> IEEE Spectrum >>> >>> Hi Max, >>> >>> I haven't seen a quartz watch with a trimmer capacitor in >>> something like 20 years. >>> >>> What they do now days is use a microprocessor with flash ram, >>> and the timing machine reprograms the microprocessor's second >>> counter to trip at the right time. >>> >>> -Chuck Harris (amateur watchmaker) >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> >> -- >> No virus found in this incoming message. >> Checked by AVG Free Edition. >> Version: 7.5.503 / Virus Database: 269.16.12/1163 - Release Date: >> 12/1/2007 12:05 PM >> >> > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.