[Markwatkiss]

NOS Siemens CCa matched pair.The creme de la creme of 6922 tubes.Date of manufacture 1964.Test results,dated 5/7/16 included with sale.
Exceedingly rare,especially if NOS and priced accordingly at $375 which includes free shipping from Canada.I would invite you to check my extensive and perfect audiogon feedback under my member name.