Description
This is the famous VTA-70 upgrade board, best selling and best performing modification for your Dynaco ST-70 amp for the past 30+ years. This is for an assembled-tested PCB, does not include the three 12AU7 tubes. Also available as a bare PCB, or board with parts kit. Made and sold and shipped to USA only. Please allow a day or two lead time for assembled boards as they are made to order.