A Mini Oscilloscope Clock made with a. Homemade, not a commercial product. This measures about 5.5" W x 6" H x 8 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. The display alternates every ten seconds between digital and analog style. 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. The 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. Below are the operating instructions.
It can be set for operation on 120VAC U. Other countries It is an entirely homemade novelty craft project from my workbench. All the components on my clocks / kits are replaceable/repairable because they are all standard size, not SMT. The IC's or "chips" are socketed so they can also be replaced easily, even by the layman.
If a component fails or is damaged except the tube(s). All of my clocks use standard electric service (do not need a separate power supply) and most can be set for 120VAC U.
Instruction set for scope clock. The orange (neon) bulb should light. After several minutes, the filament should warm sufficiently and the screen should display 1, (number one) for 60HZ (USA) or 0 (number zero) for 50HZ (some other countries).
Sometimes the wrong frequency is erroneously detected. In this case, please unplug the clock, wait until the. Blue led goes off, and then plug it back in. The time set buttons are a pair situated close together, one is fast set, and the other slow set. To set the 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 the 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 the same time, and 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.Ress the slow set button once to confirm, and the colons (dots) should appear. This indicates the ON time is set. Press either button once to enter the OFF time set mode. Please refer to the youtube link for illustration. The item "Homemade Mini Oscilloscope Clock DG7-6 3 CRT Cathode ray tube Scope Nixie" is in sale since Wednesday, September 11, 2019. This item is in the category "Consumer Electronics\Vintage Electronics\Other Vintage Electronics". The seller is "al-truism" and is located in Finksburg, Maryland. This item can be shipped worldwide.