Elektor Team (9510)

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| Most ,RC noi e filters show a fixed roll-off (slope) at frequencies above the cross-over fre- quency. Such filters with a single RC n...

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| It still happens too often that a mains supply fails due to ther- mal overload. The result is usually a short circuit between collector...

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| It still happens too often that a mains supply fails due to ther- mal overload. The result is usually a short circuit between collector...

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| This headphone arl;1plifi~r is intended for use with high impedance headphones (greater than 300 n) such as the Sennheiser HD414 and...

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| This oscillator uses a 741 oparnp (ot; 1/4 of a LM 324) as its active component. If features an interesting and effective method to st...

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| This oscillator uses a 741 oparnp (ot; 1/4 of a LM 324) as its active component. If features an interesting and effective method to st...

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| This oscillator uses a 741 oparnp (ot; 1/4 of a LM 324) as its active component. If features an interesting and effective method to st...

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| This circuit gives a true imi- tation of the sound of wind. Transistor T 1 is connected as a zener diode and supplies T2 with a noise s...

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| For those who want to make a digital watch but are deterred by the degree of miniaturisation involved, a range of preassembled watch modu...

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| A single-beam oscilloscope is often insufficient nowadays for testing electronic circuits. This article describes a multi-channel swit...