This unique vintage collection features nine 1930-era six-pin radio tubes from various esteemed brands, including Sylvania, Wards, and National. The collection comprises: 1×58 variable-µ RF pentode, 2×85 diode-triodes, 2×89 triodes, 1×2B7 detector/AVC triode, and 2×2A5 audio-output pentodes. An additional unmarked six-pin triode/pentode with a top grid cap is included, matching the period’s construction. This set […]