The Deposited-Carbon Resistor: An Essential Component of Good Audio Design Practice
Film-type resistors are described historically, and qualifications and advantages over conventional composition types are presented. Particular emphasis is placed on the circuit requirements of stability-from the standpoints of temperature, voltage coefficient, and aging-and on freedom from noise. Specific figures show that high-gain amplifiers cannot be classified as well engineered without the use of this type of component. The paper concludes with a description of the various types of film resistors now available.
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