One Dynaco Mark 3/Mark 2 upgrade board with parts and instructions. Each amplifier requires one board. The Board uses a Cascoded 12AU7 into a Long Tailed Pair Phase Inverter. Choose Capacitors in dropdown menu: Standard (Xicon), Sprague, or Solen.
NOTE: The board is Pictured with Solen Coupling Capacitors, you will recieve Xicon Polypropylene Capacitors with the Standard Kit.
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