North American KR Audio Tube Dealers
www.NewQuestSound.com
PO Box 131
Temple City, CA  91780

Tel: (626)262-3607
Fax:(626)574-7919 

Email to:  sales@newquestsound.com
Attn: Jason

www.TubesUSA.com
Tel: (516)902-3334

Email to: info@tubesusa.com
Attn George

www.WorldsBestTubes.com
2813 Dayton Dr,
Ann Arbor, Mich 48108-1239

Tel: (734)645-3576
Fax:(734)677-2424 

Email to:  sb@renaissanceaudio.com
Attn: Bradley

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