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25W4GT US Brands (20 in stock) (half-wave rectifier)
25W6GT US Brands NOS (3 in stock)
25Y5 US Brands (4 in stock)
25Z5 Cunningham used/good 1940's (55/40 and 57/40)
25Z5 Philco used/good 1940's (50/40 and 51/40)
25Z5 RCA NOS (2 in stock)
25Z5 Sylvania NOS 1940's (2 in stock)
25Z5 Sylvania used/tests like new 1940's (53/40 and 54/40)
25Z5 Tungsol used/like new 1940's (55/40 and 55/40)
25Z5 US Brands NOS 1940's (10 in stock)
25Z5 used/good
25Z6 RCA Radiotron used/tests like new 1940 era (51/40 and 51/40) 1% diode balance
25Z6GT US Brands NOS (15 in stock)
26 Coronado by RCA tests like new 1940's (6.0ma)
26 Knight by Sylvania ST-14 used/like new 1940's (6.4ma)
26 National Union engraved base tests like new 1930's (6.0ma)
26 National Union ST-14 used/like new 1940's (6.1ma)
26 RCA Radiotron/Cunningham engraved used/good 1930's (3.6ma)
26 RCA Radiotron/Cunningham engraved used/very good 1930's (5.9ma)
26 ST-14 National Union used/good 1950 era (3.8ma, Gm=900)
