I just picked up this '75 Princeton non reverb and it looks to have a '69 speaker in it that I assume is reconed. It sounds amazing so clean and full all the way up the dial. Some speaker flub if it's on 10 or hit with loud overdrive pedal. I am not getting any tremolo at all and I have read it's likely a bad 7025tube (they are new JJ ecc83s), over bias, or one of the .01 uf disc shaped caps in the middle of the board. Mine has 2 x .01 uf caps and one of them looks a little melted, perhaps by a soldering iron. Should there be 3 of these caps or only two in the non reverb model? Thanks to all here this forum has really such great info!