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Modular Amps
Egnater / Randall Modular Amps
Hello again all!! ...determining plate voltage of the RM100
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<blockquote data-quote="kc2eeb" data-source="post: 54594" data-attributes="member: 811"><p>It's between 500 and 510 depending on your line voltage, but, when you use the bias test sockets on the back of the amp you are measuring the actual current draw. You are measuring the voltage drop across a 1 Ohm</p><p>resistor. As per Ohm's law Current =Volts divided by Resistance.</p><p>Since the resistor is 1 Ohm, the volts(millivolts) convert directly to Amps</p><p>(milliamps.)</p><p>You're not gaining anything as far as accuracy by opening up the amp and</p><p>using the meter in series with the plate especially because, surprise!, most meters, when set to display current, are actually measuring a voltage drop across a calibrated resistance. This is EXACTLY what you're doing when you use the test points supplied on the back of the amp.</p></blockquote><p></p>
[QUOTE="kc2eeb, post: 54594, member: 811"] It's between 500 and 510 depending on your line voltage, but, when you use the bias test sockets on the back of the amp you are measuring the actual current draw. You are measuring the voltage drop across a 1 Ohm resistor. As per Ohm's law Current =Volts divided by Resistance. Since the resistor is 1 Ohm, the volts(millivolts) convert directly to Amps (milliamps.) You're not gaining anything as far as accuracy by opening up the amp and using the meter in series with the plate especially because, surprise!, most meters, when set to display current, are actually measuring a voltage drop across a calibrated resistance. This is EXACTLY what you're doing when you use the test points supplied on the back of the amp. [/QUOTE]
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Modular Amps
Egnater / Randall Modular Amps
Hello again all!! ...determining plate voltage of the RM100
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