Topic: DC Amplifier
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How to Repair a Marantz 300DC Amplifier
Remove static and distortion to elevate the clarity of your audio by using a powered amplifier. The Marantz 300DC is a powerful stereo amplifier that provides 200 watts per channel. It is designed to provide clear low distortion audio to bo... Read More »
Source: http://www.ehow.com/how_7490435_repair-marantz-300dc-amplifier.ht...
How do you amplify DC voltage?
Either electronically through a DC Bus similar to what is used in a Variable Frequency Drive, or through a Voltage doubler where resistors in parallel with a series r off of the p resistor acts as a voltage multiplier. Search for Voltage di... Read More »
Source: http://wiki.answers.com/Q/How_do_you_amplify_DC_voltage
How an operational amplifier can amplify DC signals?
It takes the difference between of two input and amplify by the open loop gain of the amplifier or closed loop gain of the amplifier. It is very hard to control open loop gain of 100 Db so it very seldom used Read More »
Source: http://wiki.answers.com/Q/How_an_operational_amplifier_can_amplif...
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DC Amplifier
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Answers to Other Common Questions
The purpose of biasing an amplifier is to shift its operating point, so that when you apply a signal in you will get a expected signal out. The operating point is generally in the middle of the linear region. You would not use AC for the bi...
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Source: http://wiki.answers.com/Q/Why_you_are_giving_dc_supply_for_biasin...
Changing temperatures of the transistors that run the speakers. As you play loud the temperature increase tremendously. Upto some level the cooling transistor control this but can not solve fully.
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Source: http://answers.yahoo.com/question/index?qid=20120324062349AAyHPX5
A DC-coupled electronic Voltage Amplifier has differential inputs and, usually,a ...
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Source: http://www.chacha.com/question/what-does-a-dc-coupled-operational...
The amperage rating of the transformer in a 12V power supply cannot be changed. The size of the copper windings determine the power load (amps) it can handle and the point where the lead is tapped off of the windings determine the voltage. ...
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Source: http://wiki.answers.com/Q/How_you_amplify_the_current_from_5_amp_...
You are asking for a course on electronics. There are DIY sites that will provide various circuit designs, but I suspect you need more than that. Try to search the web for a kit. A DC voltage supply, for which a 7812 chip might be helpful, ...
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Source: http://answers.yahoo.com/question/index?qid=20100106014221AAxv7lE
It IS used. It's just converted to DC. DC is better but it doesn't last long in hydro wires, which is why it's transmitted in AC and converted at the receiving end.
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Source: http://answers.yahoo.com/question/index?qid=20110905100919AA85nHr
