Attention Audio Aero Capitole owners, need help

I purchased a used Audio Aero Capitole mk1 about 1 year ago here on audiogon and the CDP just started making some large static sounds. Is it time to replace the tubes? Since I didn't receive a owners manual with the purchase how do I check the tubes? Where on the machine are they located? If I do need new tubes where are the best places to buy them?

Thanks for your help.
Give the guys at Globe Audio a call 1-800-330-3804 or email.
email :
Don't know if you can test these since the tubes are soldered onto the circuit board. They are located I believe in the left rear of the player and uses two 6021 W subminiature tubes. As "Peterd" stated above give the guys at Globe Audio a call and describe the problem, if you need new tubes they can supply these as well. They are very helpful.
The guys over at Globe Audio are your ticket. I own the AA Prima. They have been more than helpful. They will set you free.
Everyone thanks. I called and email Globe with my situation. I have not heard back yet but will give them a few days.