From: jl@glen--canyon.com   
      
   On Thu, 27 Nov 2025 05:16:18 GMT, Jan Panteltje    
   wrote:   
      
   >>john larkin wrote:   
   >>>On Wed, 26 Nov 2025 16:24:52 GMT, Jan Panteltje    
   >>wrote:   
   >>   
   >>>>Bill Sloman wrote:   
   >>>>>On 26/11/2025 8:16 pm, Jan Panteltje wrote:   
   >>>>>> "Tom Del Rosso" wrote:   
   >>>>>>> john larkin wrote:   
   >>>>>>>   
   >>>>>>> Good on-chip oscillators would be cool, on uPs and FPGAs.   
   >>>>>>   
   >>>>>> I have an electric oven that seems to use the on-chip oscillatior. The   
   >>>>>> clock gains a few minutes a day. Thay could have omitted the clock and   
   >>>>>> no one would miss it.   
   >>>>>   
   >>>>> On chip oscillators are temperature dependent   
   >>>>   
   >>>>But some more so that others. I had cheap Casio watch that I bought in   
   >>>>the 1980's and it went through three lithium batteries until I managed   
   >>>>to leave it in the washing machine a couple of years ago, which wrecked it.   
   >>>   
   >>>https://casiosupport.zendesk.com/hc/en-us/articles/3600001011   
   2-Quartz-movemCASIO AMERICA, INC. Watches Atomic/WaveCeptor   
   >>> All Casio watches have Quartz movements.   
   >>>  Quartz-is powered by an electronic oscillator synchronized by quartz   
   crystal.   
   >>>  The electric current causes the quartz inside to pulsate with a precise   
   frequency   
   >>   
   >>Probably all watches now have an off-chip quartz tuning-fork   
   >>resonator, usually 2^15 Hz. MEMS resonators are getting pretty good   
   >>lately, and the resonator and the oscillator circuit can be on the   
   >>same silicon chip, so I expect MEMS watches soon.   
   >>   
   >>Bulova once made a watch that used a low frequency tuning fork   
   >>resonator that directly operated a tiny ratchet.   
   >>   
   >>Given that everybody carries a phone now, why have a watch?   
   >   
   >When I wake up at night because of some noise like last night, I use the   
   watch for time check..   
   >Sure there is a big Sony clock in my room too, behind the bed,   
   >Also when one does _not_ want to be tracked and leaves the phones at home a   
   watch is great.   
      
   Oh.   
      
   >Phones are big...   
   >Much easier to look at your watch than getting out the phone, safer too,   
   phone pitchers what not.   
   >Just do not wear a golden watch, it attracts problems.   
   >I remember in LA walking to a movie, some gang near the entrance.. 'show me   
   your watch'   
   >In those days it was a cheap one one with red LED display..   
   >We got along fine :-)   
   >The Casio watches are safe, and reliable, no recharge needed every day like   
   the phone, useful when in the wild   
   >or when out of cell tower range, or in a boat with lots of water hitting you.   
      
   I take lots of pictures: whiteboards, sketches, scope screens, parts,   
   outdoor stuff. My phone is a nice thin camera. My vision is mediocre,   
   and the phone makes a great magnifier.   
      
   The flashlight function is very handy too.   
      
   All my old HP calculators are dying, so the RPN on the phone is great.   
      
   I rarely use the phone as a phone, and never text.   
      
      
   John Larkin   
   Highland Tech Glen Canyon Design Center   
   Lunatic Fringe Electronics   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)