Koss 1740A Blueberry Personal CD Player with 40-Second Anti-Shock |
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A low cost machine that plays full-size CDs
40 Second Anti-Skip Plus Advanced Shock Protection. Lid Top Controls for Easy Access. Dynamic
Bass Boost Sound (DBBS). Programmable CD Memory. 6 Digit LCD Display. CD Track Skip - Search, Repeat and Random Play. Koss Stereo Headphones
This unit uses 2 "AA" Size Batteries (not included). It also comes with an AC Adapter for Maximum Battery Conservation.
A CD player simply fires a laser beam onto the optical disk surface and looks for a
reflection. A lack of a reflection means a ‘hole’ has been burnt into the reflective layer and represents one binary state, whereas a reflection means no ‘hole’ has been burnt
and this represents the other binary state. So by a series of ‘holes’ a digital stream of binary digits can be extracted. The anti-shock system is really just a solid state buffer
that is filled up when the player is started and is used when the binary stream from the CD is interrupted due to mechanical shock. Once the CD stream has been recovered,
the buffer can be filled up again. Hopefully, there will be no interruption to the output from the buffer.
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