Once my unit was restored, I showed it to my friend, "The Doc" and he said, "Great Scott! I used to have one of these back in 1968!" In the end, I decided to give it to him because it meant more to him than me. However, in the process, I managed to learn how a flip clock mechanism works, and managed to get some great images. Ground and VCC on the RTC should be wired to the corresponding pins on the Arduino.
END FLIPCLOCK PRO
On the Pro Micro, connect SDA to pin 2 and SCL to pin 3. Wire the RTC module to the I2C pins on the Arduino. My unit had many problems the lights did not illuminate, and the motor was completely dead, hence I had to take it apart to get to the faulty components. At first, only attach the zip ties near the front of the clock, as the rear zip ties will also be used for cable management. If you see no movement, then the motor is not turning, and your Digimatic will require inspection by a qualified engineer. The front of this Digimatic unit has a small square window, and if you look through it, you should see a set of red stripes moving. However many people would have forgotten, and consequently today many units will have a jammed mechanism, or a motor that no longer rotates.
END FLIPCLOCK MANUAL
Great Scott!Īmazingly, this split-flap clock mechanism required lubricating more than once a year and they provided a manual showing the points to lubricate using special oil known as "LUNA 40". It is a very high quality design, which they used in many other audio products of the time. The power output is 850 mW through an 8 Ω 9.2 cm loudspeaker. However, the audio output circuit has a pair of push-pull transistors, and a transformer coupled output. This is probably because of the Onkyo manufactured speaker, which points to the base making the sound come from underneath the unit. This model also has an AM/FM radio, and I thought that the sound was very clear and smooth. I suppose nothing is forever, however, unlike people, the good thing about technology is that you can always bring things back to life. The rotor should interlock with the rotor end cap.
END FLIPCLOCK INSTALL
Install the rotor end cap onto the motor shaft, with the protruding nub facing the motor body. This motor is continuously turning, and eventually it reaches the end of its service life and stops. Use 2 M3x10mm bolts and lock nuts to attach a motor to the motor mount. These units are well past their useful life period today, and if you manage to get one, the main thing to check for is the AC motor, which the clock mechanism relies upon. This model is a golden oldie, and therefore a very iconicĭesign.
You might be thinking that it was cheap, but it was in a bad state when I received it. I managed to get mine at a bargain price of five pounds! "Great Scott!" you might say.
There are usually many of these for sale on eBay, and I managed to get this Sony 8FC-59W, which is one of the earliest ones they made. Go back to the future to see if I could find one. Fox and those wonderful "Back to the Future" films, I just love that starting sequence where they show an old style flip clock, because it reminded me of my own youth and having a similar one bought at a jumble sale.
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