Here are two Dynaco ST-70 Kits. . . FYI
http://www.tubes4hifi.com/bob.htm ($695 EL34) or ($755 KT88)
Re-engineered Driver Board [(3) 12AT7 high gain or (3) 12AU7 low gain or (3) 12BH7 optimized low gain)]
Cap Section increase from 30, 20, 20, 20 quad to 80, 40, 30, 20 quad
(upgrade cap board [$15])
Triode/Pentode Mode switch
Bias pot for each output tube
EL34 or KT88 output tubes
http://store.triodestore.com/st70buildkit.html ($685)
Re-engineered Driver Board [{(2) 6AU6 or (2) EF86} + (1) 12AU7]
Re-engineered Cap Section Board 50-160-50-50 w/surface mount
(upgrade cap board option 40-195-135-135 no surface mount [$70.00])
Tube or solid state power supply
Bias pot for each pair of output tubes
http://www.tubes4hifi.com/bob.htm ($695 EL34) or ($755 KT88)
Re-engineered Driver Board [(3) 12AT7 high gain or (3) 12AU7 low gain or (3) 12BH7 optimized low gain)]
Cap Section increase from 30, 20, 20, 20 quad to 80, 40, 30, 20 quad
(upgrade cap board [$15])
Triode/Pentode Mode switch
Bias pot for each output tube
EL34 or KT88 output tubes
http://store.triodestore.com/st70buildkit.html ($685)
Re-engineered Driver Board [{(2) 6AU6 or (2) EF86} + (1) 12AU7]
Re-engineered Cap Section Board 50-160-50-50 w/surface mount
(upgrade cap board option 40-195-135-135 no surface mount [$70.00])
Tube or solid state power supply
Bias pot for each pair of output tubes