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U18/20, GEC, BROWN BASE, MC, MARCH 1956 PRODUCTION
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U18/20, GEC, BROWN BASE, MC, MARCH 1956 PRODUCTION U18/20, GEC, BROWN BASE, MC, MARCH 1956 PRODUCTION

U18/20, GEC, BROWN BASE, MC, MARCH 1956 PRODUCTION

Only 1 left!

U18/20, GEC, BROWN BASE, MC, MARCH 1956 PRODUCTION

On offer today, on of these superb and scarce devices - a U52 on a B4 base, yes, thats right, same internals and envelopes perched on a B4 base!

This one shows superb emission and matching of the two diode sections.