Thread: 1/2 12BH7??
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John L Stewart John L Stewart is offline
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Location: Toronto
Posts: 301
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Go back & look at the cct carefully. It is a harmonic generator, meant for guitar or other music instruments effects. Then into the main amp. The harmonics are even order 2nd, 4th, 6th & so on. Not hifi or anything much else, but the fundamentals still get thru.