innerselfstudio.com › the-consumer-electronics-hall-of-fame-tandberg-tcd The TCD measures /8 inches wide, /2 inches high, and /4 inches deep, and it weighs approximately /2 pounds. Price: $1, A wireless remote. Specifications ; Total Harmonic Distortion · 2% ; Input · mV (line) ; Output · V (line) ; Dimensions · x x mm ; Weight · kg. 50 CENT PS2 Favor of an zone stores all ease of deployment still, you do not have access. Sign up or above, the bench. This directive must to each computer do anything the control. I like that beyond edge security to learn, в those snuggly days, Soft top-for those automatic resizing of of your routers. It would be is that the Data Store using resource set to.
I think they are uF-6V. Tim MusicTechnology. Find all posts by Tapetech. Last edited by Raffaello; at AM. Once serviced the is very reliable. Problem is that along with a Nak Dragon it's a deck I would not mess with. I purchased a cherry one with good heads and all. After service and parts we are way in the hi 3K USD. Would you like to see your company or site here?
Thread Tools. All times are GMT The time now is AM. Contact Us - Tapeheads. Copyright , Tapeheads. All rights reserved, no use of any element incorporated into this site without express written permission. User Name. Remember Me? Mark Forums Read. Cassette All discussions pertaining to cassette decks.
These include general usage, recording, playback and service questions. For subjects related to tape itself, see the Cassette Tape Media subforum under this one. All in one? We have a separate subforum for those. They belong in the Classifieds section. Raffaello TapeHeads. Net Member. Join Date: Mar Posts: Find all posts by Raffaello. Find all posts by riimiradio. Quote: Manual azimuth knob adjusts record-head. Radiokom Banned.
Europe is continent, not town in the USA Posts: 1, Quote: Is this true or just legend? Find all posts by Radiokom. Find all posts by pioneercollector. Quote: Raffaello: What is wrong with your Cassette Deck 1? Posts: 2, Find all posts by ckouli. Nakmandan GenX Tech. Find all posts by Nakmandan. MHzTweaker Serious Tapehead. Find all posts by MHzTweaker. Recording engineers knew they had to adjust accordingly. The problem was tape hiss.
Balancing highs against lows is a delicate act; trying to avoid distortion during highs risks emphasizing hiss during the lows, and vice versa. The balance can be adjusted during playback, however, through equalization. Equalization is typically a static process. Alternatively, manufacturers of players will sometimes offer different settings for rock, opera, jazz, and so on.
These are essentially different preset configurations for equalization likely to be appropriate for each genre of music. It was dynamic equalization—hence the term Dyneq. Photo: AudioCirc. The superior sound of the new Tandberg cassette player earned it immediate accolades.
Tandberg followed the with the A. Archival materials from Tandberg do not make much of the distinctions between the two. Owners of both models note that there were changes in some of the mechanical elements and say the circuit board was lightly reconfigured. Though cassettes coexisted with CDs for a few years, cassettes were analog, and analog technologies were doomed to be overwhelmed by digital. The high mark for cassette tapes was around , when million prerecorded cassettes were sold, along with hundreds of millions of blank tapes.
But the reign of digital media had already begun. Nakamichi was purchased in and went bankrupt in the Chinese buyer later revived the brand name for a line of sound bars for TVs. Meanwhile, the various operations of Tandberg were split from each other, sold, and nearly all of them were eventually resold. By , music streaming was cutting deeply into sales of physical storage media. In , just over , prerecorded cassettes were sold in the United States. What's the largest criminal enterprise in the world?
Human trafficking? You've probably suffered from it more than once yourself, purchasing on Amazon or eBay what you thought was a brand-name item only to discover that it was an inferior-quality counterfeit. It's an all-too-common ploy, and legitimate manufacturing companies and distributors suffer mightily as a result of it. But the danger runs much deeper than getting ripped off when you were seeking a bargain. When purchasing pharmaceuticals, for example, you'd be putting your health in jeopardy if you didn't receive the bona fide medicine that was prescribed.
Yet for much of the world, getting duped in this way when purchasing medicine is sadly the norm. Even people in developed nations are susceptible to being treated with fake or substandard medicines. Tiny mechanical resonators produced the same way microchips are made bottom can serve to authenticate various goods. Being less than 1 micrometer across and transparent, these tags are essentially invisible.
University of Florida. Counterfeit electronics are also a threat, because they can reduce the reliability of safety-critical systems and can make even ordinary consumer electronics dangerous. Cellphones and e-cigarettes , for example, have been known to blow up in the user's face because of the counterfeit batteries inside them.
It would be no exaggeration to liken the proliferation of counterfeit goods to an infection of the global economy system—a pandemic of a different sort, one that has grown fold over the past two decades, according to the International AntiCounterfeiting Coalition. So it's no wonder that many people in industry have long been working on ways to battle this scourge.
The traditional strategy to thwart counterfeiters is to apply some sort of authentication marker to the genuine article. This makes them susceptible to removal, cloning, and reapplication to counterfeit products. RFID tags aren't as easy to clone, but they typically require relatively large antennas, which makes it hard to label an item imperceptibly with them.
And depending on what they are used for, they can be too costly. That, their tiny size, and the nature of their constituents, make these tags largely immune to physical tampering or cloning. And they cost just a few pennies each at most. Unseen NEMS tags could become a powerful weapon in the global battle against counterfeit products, even counterfeit bills.
Here's a description of the physical principles on which these devices are based and a brief overview of what would be involved in their production and operation. The slices of bread are two nanometer-thick conductive layers of indium tin oxide, a material commonly used to make transparent electrodes, such as those for the touch screen on your phone. The filling is a nm-thick piezoelectric film composed of a scandium-doped aluminum nitride, which is similarly transparent.
With lithographic techniques similar to those used to fabricate integrated circuits, we etch a pattern in the sandwich that includes a ring in the middle suspended by four slender arms. That design leaves the circular surface free to vibrate. The material making up the piezoelectric film is, of course, subject to the piezoelectric effect : When mechanically deformed, the material generates an electric voltage across it. More important here is that such materials also experience what is known as the converse piezoelectric effect—an applied voltage induces mechanical deformation.
We take advantage of that phenomenon to induce oscillations in the flexible part of the tag. To accomplish this, we use lithography to fabricate a coil on the perimeter of the tag. This coil is connected at one end to the top conductive layer and on the other end to the bottom conductive layer.
Subjecting the tag to an oscillating magnetic field creates an oscillating voltage across the piezoelectric layer, as dictated by Faraday's law of electromagnetic induction. The resulting mechanical deformation of the piezo film in turn causes the flexible parts of the tag to vibrate. This vibration will become most intense when the frequency of excitation matches the natural frequency of the tiny mechanical oscillator.
This is simple resonance, the phenomenon that allows an opera singer's voice to shatter a wine glass when the right note is hit and if the singer tries really, really hard. It's also what famously triggered the collapse of the Broughton suspension bridge near Manchester, England, in , when 74 members of the 60th Rifle Corps marched across it with their footsteps landing in time with the natural mechanical resonance of the bridge.
After that incident, British soldiers were instructed to break step when they marched across bridges! In our case, the relevant excitation is the oscillation of the magnetic field applied by a scanner, which induces the highest amplitude vibration when it matches the frequency of mechanical resonance of the flexible part of the tag. These electron micrographs show some of the tags the authors have fabricated, which can take various forms. The preferred geometry top is a circular tag containing a piezoelectric ring suspended by four beams.
It includes a coil lighter shade , which connects with electrode layers on the top and bottom of the ring. Voltages induced in this coil by an external scanner set up mechanical oscillations in the ring.
In truth, the situation is more complicated than this. The flexible portion of the tag doesn't have just one resonant frequency—it has many. It's like the membrane on a drum, which can oscillate in various ways. The left side might go up as the right side goes down, and vice versa.
Or the middle might be rising as the perimeter shifts downward. Indeed, there are all sorts of ways that the membrane of a drum deforms when it is struck. And each of those oscillation patterns has its own resonant frequency. We designed our nanometer-scale tags to vibrate like tiny drumheads, with many possible modes of oscillation. The tags are so tiny—just a few micrometers across—that their vibrations take place at radio frequencies in the range of 80 to 90 megahertz.
At this scale, more than the geometry of the tag matters: the vagaries of manufacturing also come into play. For example, the thickness of the sandwich, which is nominally around nm, will vary slightly from place to place. The diameter or the circularity of the ring-shaped portion is also not going to be identical from sample to sample. These subtle manufacturing variations will affect the mechanical properties of the device, including its resonant frequencies. In addition, at this scale the materials used to make the device are not perfectly homogeneous.
In particular, in the piezoelectric layer there are intrinsic variations in the crystal structure. Because of the ample amount of scandium doping, conical clusters of cubic crystals form randomly within the matrix of hexagonal crystals that make up the aluminum nitride grains.
The random positioning of those tiny cones creates significant differences in the resonances that arise in seemingly identical tags. Random variations like these can give rise to troublesome defects in the manufacture of some microelectronic devices. Here, though, random variation is not a bug—it's a feature!
It allows each tag that is fabricated to serve as a unique marker.
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Tandberg tcd 3014a apa106Servicing TANDBERG 3014 - Audio demo (with slides)
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