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Cleaning dirty gain controls

Gain controls, which utilize a variable resistor called a potentiometer (pot) to control the level of the input signal, can collect dust and other particles inside of them. A common symptom of dirty gain controls is an crackling, static, or intermittent s…
PDF Available Introduction Gain controls, which utilize a variable resistor called a potentiometer (pot) to control the level of the input signal, can collect dust and other p… http://qscservice.com/news/cleaning-dirty-gain-controls/

Replacing amplifier power switches

After repeated uses the power switch may sometimes wear out, seize, arc, lose its spring tension, fail to make a connection, or otherwise go bad. Replace a bad switch with a brand new one by following these simple instructions.
PDF Available Introduction After repeated uses the power switch may sometimes wear out, seize, arc, lose its spring tension, fail to make a connection, or otherwise go ba… http://qscservice.com/news/replacing-amplifier-power-switches/