GraafGM20FS: Graaf GM20 OTL (output transformerless) tube amplifier, 20 WPC of pure triode bliss. class-A circlotron topology, balanced and single-ended inputs. I have used this amp with Quad ESL 57 and 15 ...2790.00
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Graaf GM20 OTL Triode amplifier [Expired]
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Member since February 2011
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