Made in USA by Tung-Sol.
Long gray plate, D-Getter. Premium 12AU7.
Wide bandwidth, well balanced, excellent sound stage and air.Very good tube.
Nos in original box. Matched pair are available.
Made in USA by RCA (1960s).
Muddy black plate, Triple mica and Double D-Getter with five supports.
Most of muddy black plate version are made by RCA.
Very warm sweet sound, great on voices and jazz. Long life tube (10.000 hours)
Ligh used but test excellent. Packed in white box. Matched pair are available.
Made in USA by RCA (1960s).
Muddy black plate, Triple mica and Double D-Getter with five supports.
Most of muddy black plate version are made by RCA.
Very warm sweet sound, great on voices and jazz. Long life tube (10.000 hours)
Nos in original box. Matched pair are available.
Made by Tung-Sol (1945).
Like the Sylvania Metal base. This is one of the best tube ever made in USA with half smoke glass, Round muddy black plate. Oval mica. Clean, fast, the best in everything, wide bandwidth, great resolution.
Ligh used but test excellent. Packed in white box. Matched pair are available.
Made by Tung-Sol (1942).
Like the Sylvania Metal base. This is one of the best tube ever made in USA with half smoke glass.
Round muddy black plate. Round mica on the top (better than oval mica version).
Nos in original box. Matched pair are available.
Made in USA.
Long gray plate, D-Getter. Premium 12AU7.
Wide bandwidth, well balanced, excellent sound stage and air.Very good tube.
Nos in original box. Matched pair are available.
Made by Tung-Sol (1945).
Like the Sylvania Metal base. This is one of the best tube ever made in USA with half smoke glass, Round muddy black plate. Oval mica. Clean, fast, the best in everything, wide bandwidth, great resolution.
Nos but no original box. Packed in white box. Matched pair are available.