Dynaco ST70, Mk II, III, IV, SCA35/ HeathKit W-4/ Marantz 8B Terminal Block, Pr.
This kit will update one ST-70 or SCA-35 amplifier, or 2, Mark II, III, IV or Heath-Kit W-4 mono-block amplifiers, one Marantz 8B amplifier or one H-K Citation II amplifier. Sorry, but these will not fit the ST-35 amplifier.