MULLARD ECC82 12AU7 B329 CV491 VACUUM TUBE VALVE - AVO TESTED (V121) 

Tested using AVO VCM MkIII

Overall Test Result: Working (A bit on the low side but still usable)

Equivalent to:

12AU7 B329 CV491 E2163 E812CC

Manufacturers Stated Measurements: 
A1
Ia (mA) = 10.5
Gm (mA/V) = 2.2

A2
Ia (mA) = 10.5
Gm (mA/V) = 2.2

Actual tested measurements:
A1
Ia (mA) = 6.6
Gm (mA/V) = 1.5

A2
Ia (mA) = 7.5
Gm (mA/V) = 1.6

Comments about this valve(s): Unboxed

A full characteristics check has been performed by me using an AVO VCM MkIII (Valve Characteristics Meter - Calibrated 2025) to detect for "Shorts", "Leakage" "Gas" etc in a cold/hot state, as well as a Visual inspection to provide you peace of mind and a general indication of "Goodness" 

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