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> 2 x CV4014 (EF91) valves - tested - good/excellent
2 x CV4014 (EF91) valves - tested - good/excellent
2 x CV4014 (EF91) Valves - Tested - good/excellent
2 x CV4014 (EF91) Valves - Tested - good/excellent
These EF91 type valves have been tested on an AVO valve tester and have good/excelent characteristics. They are both marked CV4014 and 6064 -1 is a GEC valve and the other has no manufacturers name. The GEc valve is in its original box.
Specification for EF91:- Ia = 10.0 mA & Gm = 7.2 mA/V for Va = 200V, Vs = 175V & Vg = -2.0V V
Valve 1; Ia = 10.4 mA & Gm = 7.8 mA/V GEC (in box)
Valve 2; Ia = 5.7 mA & Gm = 4.2 mA/V Mazda
