For sale is a vintage Dynaco ST-70 that has been upgraded with a new preamp board using 12AU7 tubes. The upgrade is a kit offered by tubes4hifi at the site listed below. This amp is in very good condition and works perfectly. I only gave a 7 for condition due to the age of the amp but this amp has been well taken care of
Other items of interest:
Chassis and all transformers are original Dynaco parts
All tubes included, power tubes are original Mullards, 12AU7s are Sylvanias, rectifier label is rubbed off but I can read Great Britian so possibly a Mullard
All wiring connecting board and signal wiring upgraded using Kimber TCSS copper wire
The large quad cap in the power supply has been replaced with new and larger quad cap
All tube sockets replaced with NOS sockets
Preamp board replaced with the upgrade board from tubes4hifi with upgraded coupling caps
Triode/pentode switch to operate the amp in 2 different modes.
Speaker terminal strip replaced by binding posts, 8 ohm and 16 ohm taps
New RCA input jack
Original amp cover included
http://www.tubes4hifi.com/ST70.htm
Asking $800 plus shipping and fees. Will only ship to CONUS.
Other items of interest:
Chassis and all transformers are original Dynaco parts
All tubes included, power tubes are original Mullards, 12AU7s are Sylvanias, rectifier label is rubbed off but I can read Great Britian so possibly a Mullard
All wiring connecting board and signal wiring upgraded using Kimber TCSS copper wire
The large quad cap in the power supply has been replaced with new and larger quad cap
All tube sockets replaced with NOS sockets
Preamp board replaced with the upgrade board from tubes4hifi with upgraded coupling caps
Triode/pentode switch to operate the amp in 2 different modes.
Speaker terminal strip replaced by binding posts, 8 ohm and 16 ohm taps
New RCA input jack
Original amp cover included
http://www.tubes4hifi.com/ST70.htm
Asking $800 plus shipping and fees. Will only ship to CONUS.
