Tram D201 but I have found very little info. Anyone have this info? I have two D201's currently, one works pretty much as advertised but the other one puts out a carrier of almost 15 watts with a 6L6 which I am sure isn't right. This one also has an internal squeal when the mic gain is above 12 o'clock but yet the squeal isn't transmitted audibly and the squeal noise is still there even without a head on the D104. Makes no sense. Anyone know about the 6146 mod?