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Index 28

Mazda 96TAURUS gate controlling light circuit

Published:2011/6/21 0:29:00 Author:John | Keyword: gated controlling light

Mazda 96TAURUS gate controlling light circuit is shown. (View)

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Mazda 94THUNDERBIRD dashboard circuit

Published:2011/6/21 0:22:00 Author:John | Keyword: dashboard

Mazda 94THUNDERBIRD dashboard circuit is shown. (View)

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Mazda 94THUNDERBIRD power supply circuit

Published:2011/6/21 0:23:00 Author:John | Keyword: power supply

Mazda 94THUNDERBIRD power supply circuit is shown. (View)

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Mazda 94THUNDERBIRD luggage compartment and throttle opening circuit

Published:2011/6/21 0:23:00 Author:John | Keyword: luggage compartment, throttle

Mazda 94THUNDERBIRD luggage compartment and throttle opening circuit is shown. (View)

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Mazda 94THUNDERBIRD defogger circuit

Published:2011/6/21 0:23:00 Author:John | Keyword: defogger

Mazda 94THUNDERBIRD defogger circuit is shown. (View)

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Mazda 94THUNDERBIRD speaker circuit

Published:2011/6/21 0:23:00 Author:John | Keyword: speaker

Mazda 94THUNDERBIRD speaker circuit is shown. (View)

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Cascade amplifier circuit

Published:2011/6/17 9:56:00 Author:John | Keyword: Cascade amplifier

Cascade amplifier is as shown in the figure. The amplifier uses two transistors (both JFET). Q1 is common source configuration and Q2 is a total gate configuration. These two tubes are direct-coupled with each other. The input and output is tuned by a pair of LC filter. (L2C1Ct and L3C2). To avoid the occurrence frequency oscillation in the circuit, a capacitor (C3) 9 is connected to LC filter between the input end of Q1 and the output end of Q2. figure: Cascade amplifier circuit (View)

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Mazda 94THUNDERBIRD power window circuit

Published:2011/6/21 0:22:00 Author:John | Keyword: power window

Mazda 94THUNDERBIRD power window circuit is shown. (View)

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Mazda 94THUNDERBIRD (4.6L) starting circuit

Published:2011/6/21 0:22:00 Author:John

Mazda 94THUNDERBIRD (4.6L) starting circuit is shown. (View)

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Mazda 94THUNDERBIRD (non-program-controlled suspension) electronic power steering circuit

Published:2011/6/21 0:22:00 Author:John | Keyword: electronic power steering

Mazda 94THUNDERBIRD (non-program-controlled suspension) electronic power steering circuit is shown. (View)

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Mazda 95TAURUS (3.2L, SHO) cruise control circuit

Published:2011/6/21 0:36:00 Author:John | Keyword: cruise control

Mazda 95TAURUS (3.2L, SHO) cruise control circuit is shown. (View)

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direct conversion receiver using a piece of TDA-7000 chip circuit

Published:2011/6/16 5:55:00 Author:John | Keyword: direct conversion receiver

direct conversion receiver using a piece of TDA-7000 chip circuit
The following figure shows DCR front-end circuit based on TDA-7000 according to Daulton's design. This circuit is designed similarly as others because it also uses the balanced front-end circuit. Besides, internal oscillator has been used as variable frequency oscillator (VFO), just like the typical NE-602 design. The subsequent circuit is similar to typical NE-602 design. But the biggest difference is to use TDA-7000's internal op-amp to provide active band-pass filter. (View)

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Two kinds of eliminating AM broadcast band interference filters circuit

Published:2011/6/16 0:05:00 Author:John | Keyword: filter

Two kinds of eliminating AM broadcast band interference filters circuit
In order to overcome the impact of AM break, several different measures can be used. Among them, the direct conversion receiver is well isolated to eliminate the antenna effect in the circuit conductors. Even so, coaxial cable can be used between the DCR printed circuit board and the antenna connector. Despite of the isolation methods which do not influence the signal on antenna itself, the input signal should be subject to at least a few LC filter network. Filter network can be not only a band-pass filter which can pass certain frequency through the spectrum but can limit other frequencies, but also can be tuned into a single frequency. (View)