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#8
August 25th 05, 07:14 AM
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Ian Liston-Smith wrote:
I'd like to build a tone control circuit using the LF353 dual op amp. The circuit has bass, mid range and treble adjustments. The problem: The circuit (see http://www.ece.ucsb.edu/courses/ECE0...remi/lf353.pdf circuit on page 7) uses dual voltage rails of +15 and -15 volts, though for line input levels, this will probably work down to +8 and -8 volts. But I want to run it from a single +12 volt supply. Usually, two 100k resistors across the supply, What is magical about 100k? |
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