[Okamoto]

I was looking for old stuff in the basement and happened to find this amplifier that belonged to my old man, who brought it from Japan back then(~20 years ago). I can't put it to work anymore because it needs a 100v transformer that is missing, but i noticed it has a headphone outuput, which made me wonder if it can work well with high impedance headphones.
 
Has anyone ever had one of these? Is it good to drive hp's?
 
Here's a photo of the dinosaur i found on an internet auction
 

 
http://yahoo.aleado.com/lot?auctionID=e132063901

 

[Okamoto]

By the way, i'm not sure if this is its real name in fact.
 
Here's the description on the auction page:
 
Inte graytedo stereo amplifier
rating output 6Ω. load 65W+65W, 100W+100W(EIAJ)
conform speaker impedance 4Ω~16Ω
power supply AC100V 50/60Hz
power consumption 145W