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MKT4/5 MARCONI, PENTODE FROM MAY 52, 7A2, A70B, AC/Pen, APP4A, CV1683 ,KT42, MP/Pen, N40, P4VA, Pen4VA,
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MKT4/5 MARCONI, PENTODE FROM MAY 52, 7A2, A70B, AC/Pen, APP4A, CV1683 ,KT42, MP/Pen, N40, P4VA, Pen4VA,

Only 1 left!
A beautiful example of this 5 pin balluster envelope MKT4 showing very good emission as you can see from the test data. 

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