Made in USA by Sylvania.
Round muddy black plate, Bottom D-Getter.
Nos in original box.
Made in USA by RCA.
Round muddy black plate, Bottom D-Getter.
Nos in original box.
Made in G.Britain by Osram. * * * * * +........... Pic #2 ......... Pic #3.
Muddy black plate, Aluminium base and smoke glass. Bottom Cup Getter.
This version which was special designed and made for British's Military in 50s.
Extremely rare. No.1 in the top-five list of most wanted 6SN7s tubes in the world.
Nos in original military paper box. Never been used. Only one tube is in stock.
Made in G.Britain by Mullard (1950s).
Short base, black plate Bottom Tray Getter. The first version of ECC33. Can bring to you the superb sound, the best overall. Nearly same as 6SN7s family and can be replace for them BUT can be not used for replacing where the plate volate over 300V.
Like new in box and tested excellent. Matched pair are available.
Made in G.Britain by Mullard (1950s).
Short base, gray plate. Bottom D-Getter. Can bring to you the superb sound, the best overall. Nearly same as 6SN7s family and can be replace for them BUT can be not used for replacing where the plate volate over 300V.
Like new in box and tested excellent. Matched pair are available.
Made in G.Britain by Mullard (1950s).
Short base, gray plate. Bottom D-Getter. Can bring to you the superb sound, the best overall. Nearly same as 6SN7s family and can be replace for them BUT can be not used for replacing where the plate volate over 300V.
Like new in box and tested excellent. Matched pair are available.