The Clavioline is an early electronic keyboard instrument, similar to my Hammond Solovox. Both of them are monophonic (single voiced) and tube powered, consisting of a keyboard and an amplifier. The first photo shows my Clavioline after restoration. In the second photo, my son, Peter, is seated at the keyboard. Click the musical icon to hear him
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playing a brief theme from the well known 1962 song, Telstar. As illustrated, a Clavioline can be used in two ways. First, like a Hammond Solovox, it can be mounted on a piano and played as an adjunct to the piano keyboard. Or, mounted on a tripod, it can be played as a standalone instrument. In the United States, Claviolines were manufactured by the Gibson instrument company. They were also built by JG¶rgensen in Germany and Selmer in England. Since the JG¶rgensen and Selmer instruments differ in construction as well as features, I`ll refer you to the previous links for details about them. Martin applied for a U. S. patent in 1948 and on August 7, 1951, he was granted patent 2, 563, 477, "Electronic Musical Instrument. " Click the thumbnail to read the patent, with the full description and original drawings: If you`re looking for a layman`s explanation of how a Clavioline works, the patent is not the place to start. Like most patents, it is written in a dense polyglot of legalese and techno-jargon, aimed at establishing precedence and forestalling infringement. Furthermore, since a patent is drafted to protect ideas and principles in the broadest possible fashion, this one doesn`t literally describe the Clavioline as it was commercially realized. Still, it`s interesting to see a contemporary expression of Martin`s idea. Interestingly, the last page of Martin`s patent description references an earlier (1939) patent, number...
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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