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Conrad Johnson PV10AL Tube & Polarity Questions?

I don't have the owners manual for mine but I thought I read somewhere that the CJ's invert polarity? Is this true because it sure sounds that way in my system. I also would like to experiment with changing some tubes around. I listen to Rock & Roll. I have a pair of Tylo Monitors, Mc Cormack DNA-1, Philips 963SA with DH labs cable. I have never swapped tubes & have no idea what should be in there or is what in there at the moment. Where do I begin?
fishwater

Showing 2 responses by herman

herman
2,280 posts
 
It has a pair of 12AU7 tubes and does invert polarity.

Begin by taking out the screws that hold down the top plate. Be sure the unit is unplugged before you do this. To remove a tube, gently rock it a few degrees back and forth while pulling up. Some will tell you to wear gloves to keep oils off the tube but I don't think it makes any difference. The pins are not symmetrical so the tube can go back in only one way. Line up the pins in the holes and gently rock back and forth a few degrees while pushing down.
herman
2,280 posts
 
I would email CJ and ask them and see if they can send you a manual. They have always been extremely helpful when I had dealings with them. A first class outfit when it comes to customer support.
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