ECC32 Mullard CV181 KB/DA equiv. B65 6SN7GT etched code on glass 1185

Description

Nice and clean quartet of genuine Mullard CV181 KB/DA on glass ECC32 with square getter and etched codes on glass.

Quartet of Mullard CV181 are hard to come by; etched code on glass CV181 1185 C1; CV181 1185 L1; CV1811185 L2; CV181 1185 C1

A good. tested CV181 gives 6mA of current with mA/V of  2.3

CV181 tested with AVO VCM 163 at 6.2mA; 6,1mA; 6.3mA; 6.3mA 100% emission