*** Please use Shopping Trolley to get Shipping Discount ***Unknown Mazda Pentode 7 Pin (B7 Base) Valve/Tube. It is a relatively clean valve and although fitted in a unit seems to have had very little use; the Mazda green marking has faded (typical) and is impossible to read against the zinc coating; I have provided good image of markings if anyone has good filters to read it. I have tested it on my AVO VCM as an ACSP1 (4Vh, Vg-3, 200Vs 200Va and gave 7mA Ia and 2mA/V - close results.
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