ECC81 MARCONI
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ECC81 MARCONI ECC81 MARCONI

ECC81 MARCONI

  • £20.00

Only 1 left!

On offer today is a lovely Marconiphone premium quality ECC81 .       Carrying good white print, it tests as excellent using my AVO Valve Characteristic Meter VCM163 with the following results: At Va = 250V Vg = -2.0V 

Section 1: Ia = 10 mA; gm = 5 mA/V

Section 2: Ia = 10 mA; gm = 5 mA/V

The specification for a new/100% emission valve is:

Ia = 10 mA; gm = 5.5 mA/V

As you can see, this result show a strong valve with excellent matching of each triode section within the envelope.


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