MADE IN THE USA
Increased brightness makes the blue led backlight much of the screen.
Battery backup included with "buy now" price.
A Mini Oscilloscope Clock made with a 6Loi1 CRT. Homemade, not a commercial product. This measures about 5.5" W x 6" H x 6" D. The clear acrylic shroud is
not attached, but sits loose on top of the plexiglass base. The board has pots to adjust vertical & horizontal height / width, focus, astigmatism, brightness, and
vertical and horizontal centering. Automatically sets for 50/60HZ. The display alternates every ten seconds between digital and analog style. Display also moves
slightly every six seconds to help prevent "burn in" of the crt. The microcontroller and all chips are in sockets for easy replacement, and all components are
replaceable/repairable with some soldering skills and basic component identification. This "old school" tech has been salvaged from obsolescence
by marrying it to new digital tech. It is an entirely homemade/handmade product, including the base and shroud, which I thermoform from plexiglass stock, and
the firmware the microcontroller is programmed with, which is my own original code. It can be set for 120VAC (U.S. standard) or 240VAC (some other countries).
Below are the operating instructions. I will ship it anywhere in the world, but I cannot be responsible for problems and/or delays caused by customs in your
country. International buyers, please send your address for a shipping quote.
It is an entirely homemade novelty craft project from my workbench.
See A Youtube of it here: http://youtu.be/BIxXTcE8DKc
Youtube with brighter blue led backlighting: http://youtu.be/cp1esnLJ9WA
Some points of interest:
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Instruction set for scope clock
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When plugged in, the blue led should light immediately, and there should be a small ‘click’ of the relay engaging. After several minutes, the filament should warm sufficiently and the screen should display ‘1’, (number one) on the right side. This means 60HZ was detected, and set accordingly.
If a zero appears instead, then 50HZ was erroneously detected. Unplug, wait until the blue led goes off, and then plug back in.
The time set buttons are a pair situated close together, one is fast set, and the other slow set. To set time without programming any preset on/off times , just press the slow set button (on the left) once and the clock face should appear, then use the two buttons on the front to set time.
To manually turn the display on/off, press the toggle button (separate from the two set buttons).
To program the preset on/off times: Press the fast set & slow set buttons at same time, the screen should display the clock face without hands. Press the fast set button again, and the hours hand should appear .Each time that button is pressed, the hours hand should increment once. When the desired hour is shown for ON time (AM only), Press the slow set button once to confirm, the colons (dots) should appear, this indicates the ON time is set. Press either button once to enter the OFF time set mode. Follow the same procedure , and after the OFF time is confirmed ( colons appear ) , either press slow set to enter normal timekeeping ( fast set , slow set ) mode , or , to set the second set of preset on / off times , press fast set and follow the same procedure , except this time you will be selecting first a PM on time , then an AM off time.
Please refer to the youtube link for illustration: http://www.youtube.com/watch?v=y8ro4a65wk8
Note: The clock will display 12:00 AM to start, so if the present time is after noon, you will need to advance the time past 12:00 in order to reach the PM hours, else the preset on/off times may be reversed. I.E.: if the present time is 8:00 PM, you need to advance PAST 8:00 once, and then stop at 8:00. Thanks again for your purchase!