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FSG / RSD Vintage 6L6 GB/GC NOS NIB East Germany Quartet matched values tested & factory date codes [Template]
no longer for sale
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Matched Quartet (4) of vintage : 6L6 GB/GC FSG / RSD NOS NIB, same factory date codes, absolutely NEWS, never used,only for the full stong tested on Hickok 539C tube tester, the values were:
7000, 7050, 7060,7040, Gm (Micromhos). Min. recommended for 6L6 3300 Gm.
Tested ok: no gas, leaks or shorts.
The FSG / RSD was a German distributor of valves and components.