Happened to have in my NIXIE collection a single beautiful giant ZM1042 (for the record, I got it from Jim Oostveen). For me it was obvious that a single digit NIXIE clock built around this tube would be just the thing for Geert. Some time ago, while visiting our local IKEA store, I found just the perfect case for the clock: a 14x19x8 cm wooden frame with a glass window front and a white hardboard back.
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It was just after I made the random color design for Jan Verhoevens farewell present, and it seemed a nice idea to combine the single tube NIXIE clock with an ambient light feature. Personally I am completely mystified by the success of the Philips "ambi-light LCD" TV. I work at Philips Research myself, and I would never have believed that somebody would pay extra money for a TV that projects a colorful aura on the wall behind the TV, but the fact is there. Also the positive reactions I got on Jan Verhoevens color changing farewell clock, let me to the conclusion that colors are very important to people. I myself am totally color blind, so unfortunately I will never be able to appreciate this. But, Geert is not color blind, and he thought it was a great idea! For some time now I have been playing around with the idea to make a clock in which the high voltage for the NIXIE tubes is derived directly from the mains, without the need for an high voltage transformer or switch-mode power supply. Since there was only very little space in the wooden case that I had in mind for this clock, I decided to use it for Geert`s clock. Connecting a clock directly to the mains requires some special precautions, which will be explained in one of the next sections. To make the clock even more interesting I wanted to make the digits in the NIXIE tube to fade slowly on and off. Especially for these giant NIXIE tubes the effect is very striking....
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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