12AU7 BRIMAR WHITE PRINT ECC82 MATCHED PAIR
On offer we have a beautiful matched pair of white print Brimar 12AU7/ ECC82. These devices present with superb matching both within the envelope and inter device.
These devices have tested on our AVO VCM163 valve tester as having 100% emission with very close matching for each triode section within the envelope.
V3: Section 1: Ia = 10.0 mA; gm = 2.2 mA/V
V3: Section 2: Ia = 10.0 mA; gm = 2.2 mA/V
V4: Section 1: Ia =10.0 mA; gm = 2.0 mA/V
V4: Section 2: Ia = 9.5 mA; gm = 1.9 mA/V
The specification for a new/100% emission valve is:
Ia = 10 mA; gm = 2.2 mA/V
As you can see, this result show a really strong matched pair of valves with good matching of each triode section within each envelope.