PC-3B Custom built (ST-70) circuit board
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Custom built for your special ST-70 restoration. This is our PC-3B (6GH8-A) Brown Polyimide circuit board with Riken audiophile resistors, Sequa paper in oil capacitors & precision 1% Polystyrene capacitors. Includes two (2) Tungsram (NOS) 6GH8A tubes Pre-Soviet (1955) Hungary. Professionally assembled and includes a (60) day warranty.