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input voltages
Posted:
Sun Jan 03, 2010 2:31 amby jcm2555
Hi im very interested in purchasing an older ST 70 of ebay and doing it up so I can have a nice power amp for home, but cant seem to find what the input voltage’s are.
My question is can the ST 70 be run on a 230/240 50hz vac supply
Posted:
Sun Jan 03, 2010 3:27 amby TerrySmith
NO! About 99.9% of ST70's were 115v 60hz. You will need a PA-521 transformer from Triode or Dynakitparts, it has dual primaries and is rated for 50hz.
Posted:
Sun Jan 03, 2010 10:48 pmby Sal Brisindi
You can also use a step down transformer rated at 3 amps on the 120 volt side or a variac, but that can be dangerous if someone would turn the knob the wrong way...
Sal
Posted:
Sun Jan 03, 2010 11:51 pmby Geek
Sal Brisindi wrote:You can also use a step down transformer rated at 3 amps on the 120 volt side or a variac....
Eeeek! NO!
The PA-060 runs hot enough on 60Hz. 50Hz will be a fire hazard!
Cheers!
Posted:
Mon Jan 04, 2010 6:49 amby Sal Brisindi
I didn't think of that...