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ECC83 12AX7 Mullard New Penta logo + Mullard M8137 boxed plates!

Mullard New Penta logo ECC83 12AX7 £ 100 pair

Mullard M8137 boxed plate ECC83 12AX7 £ 250 pair

Category: Dual triode valves Noval

Description
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Description

This section shows you two types of Mullard ECC83 12AX7

Top and Bottom we have 8 pieces Mullard New Penta logo B code on glass type ECC83 12AX7

Middle a matched quartet of boxed plate Mullard M8137 = ECC83 12AX7

All ECC83 tested 1.2mA each anode 100% emission

All valves shown are tested 100%

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