Coin and talking bottle. Effective trick and its solution

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Coin and talking bottle. The Secret of Focus

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

The magician uses a coin to make the bottle talk.

Props:

An empty 2-liter plastic bottle, a coin with a diameter of the neck of the bottle.

Focus secret:

Put an empty plastic bottle in the freezer. After 5 minutes, remove it and close the bottle neck with a coin, after moistening the coin with water. The coin will bounce, crackle, as if the bottle is talking.

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New LED drivers from RECOM 29.12.2008

Reliable driving of LEDs requires constant current. Lighting manufacturers, being experts in lighting sources, often have little experience with electronic components.

To fill this gap, RECOM offers a complete solution with the RCD 24-xx series. These drivers provide dimmable analog output current up to 300, 350, 500, 600 and 700mA, respectively. Linear brightness control from 0 to 100% is carried out using PWM, operating in the frequency range from 20 to 200 Hz.

The transducers have an input signal range of 4,5...36V. For battery powered applications there is also a standby mode. The nominal error of the output current is +2%, and changes depending on the input voltage level up to +1%. The case dimensions are only 22,1x12,6x8,5mm and the case is made of UL94-V0 material.

The drivers are available with six pins or four 100mm output leads. The operating temperature range without derating is -40 to 71°C (for 700 mA) or up to 85°C (for 350 mA).

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