Description
The Telefunken E80CF (7643) is a premium-grade NOS triode-pentode manufactured at Telefunken’s Ulm facility in West Germany — identifiable by Telefunken’s famous diamond bottom mark. The E80 prefix indicates it is built to the more stringent ‘industrial quality’ specification, with tighter tolerances and greater reliability than consumer types.
Telefunken NOS valves command significant respect among audiophiles and collectors for their meticulous build quality and exceptional performance. Similar types include ECF80, 6BL8, 6U8, ECF82, and 6TP1, but the E80CF’s tighter spec makes it a premium choice.
B9A noval 9-pin base. NOS, made in West Germany by Telefunken. A single valve is supplied.
