Gives me a idea: Use an old alarm clock, or even a pendulum clock with weights, that moves a disc with binary or BCD code, read by phototransistors and neon lamps to drive a set of nixies. You can also use mechanical switch contacts, but the use of neon bulbs will be more 'neonixie'....
eric -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: zondag 22 januari 2012 15:12 To: [email protected] Cc: [email protected] Subject: [neonixie-l] Mechanical Timebase! There is always a lot of discussion about various timebases for clocks on this group. One I have never seen discussed is using a high quality watch or clock movement. I have some real neat antique pocketwatches. I thought it would be real neat to set up a pocket watch movement where you can see all the works (It would have to be in a dust proof enclosure.)in operation. I thought you could pick off the oscillations of the balance wheel using a fiber optic through beam photoeye on one of the photoeyes made for detecting tiny objects. I see these in my industrial maintenance work from time to time. The watch could be set up with a electic winding mechanism. With the photoeye output (Usually 9-24 volt sourcing or sinking depending on the photoeye.) all you would need is some divider circuits to produce your timebase signal for a clock. Nixie, numitron etc. See WIkipedia Balance Wheel. A good 17-23 jewel watch movement sitting in one position a constant temperature can be very accurate. Tim -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
