Dynaco ST-70 Stereo Curcio Mods Dynakit
For sale is a Dynaco ST-70 amplifer, from the estate of an audiophile electrical engineer. This amp has the upgraded Curcio three tube driver board with AC and DC balance options on it
http://www.ebay.com/itm/Dynaco-ST-7...ctronics_R2&hash=item19c8cd4469#ht_500wt_1327
not mine no affiliation
For sale is a Dynaco ST-70 amplifer, from the estate of an audiophile electrical engineer. This amp has the upgraded Curcio three tube driver board with AC and DC balance options on it
http://www.ebay.com/itm/Dynaco-ST-7...ctronics_R2&hash=item19c8cd4469#ht_500wt_1327
not mine no affiliation