All GFA-565 and GFA-555 MK2 board kits now include new cable assemblies

One issue that vintage Adcom amplifiers occasionally suffer from, is corrosion on the snap-in board headers and plugs that connect the bias compensation transistors to the input board on models GFA-565/585 and GFA-555 MK2. The corrosion can be caused by high humidity, salty sea air, or in the case of the GFA-565, leaked capacitor electrolyte. Failure of this connection can cause a DC offset to to appear at the output.

New bias comp cables

Continue reading All GFA-565 and GFA-555 MK2 board kits now include new cable assemblies