The Preamp

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This is the upgraded preamplifier for the Leak 40 Watt guitar amp. "Tube sound" purists would scoff at the idea of including solid state components, like op amps, in any valve design but my logic is that when you use state of the art op amps like the LM4562, the sound that goes into the tube amp is pristine and has no influence over the final tone, which will be determined by the tubes, and other elements of the design. "Chicken-head" knobs are "de rigueur" for tube amps; a sort of homage to the great days of Rock and Roll, and the American High School hops of the 50s and 60s.