Electro-Harmonix Platinum Matched 6550 (each)
Art Audio has opted to sell only factory matched Platinum Electro-Harmonix 6550 Tubes.
The 6550EH is the finest current production tube for any amp using 6550 or KT88. With 42 watts of plate dissipation in tetrode operation and 44 watts in triode, the 6550EH offers an improvement in power over even the most desirable vintage types including the Tung-Sol 6550 and Genelex KT88.
Typically ships within 3-5 business days.