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12AX7,  Brimar, Manufactured  July 1968, 3G82162,  ECC83
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12AX7,  Brimar, Manufactured  July 1968, 3G82162,  ECC83 12AX7,  Brimar, Manufactured  July 1968, 3G82162,  ECC83 12AX7,  Brimar, Manufactured  July 1968, 3G82162,  ECC83

12AX7, Brimar, Manufactured July 1968, 3G82162, ECC83

  • £65.00

Only 1 left!

12AX7,  Brimar, Manufactured  July 1968, 3G82162,  ECC83

On offer today we have a Brimar white print 12AX7 made at the Brimsdown plant and carrying a date code for July 1968. 

For Va = 250 V Vg = -2.0V against a nominal specification of anode current Ia = 1.2 mA and mutual conductance gm = 1.6 mA/V, the follwing results were obtained:-

A1 Ia = 1.2 mA gm = 1.6 mA/V

A2 Ia = 1.4 mA gm = 1.7 mA/V

As you can appreciate this represents good matching of each triode section within the envelope and a device showing superb emission.


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