6r-a8 6ra8 6bq5 el84 e84l 6rp15 6r-p15 7189 7189a. old school 6r-a8 power triodes, oe for sansui + luxman back then, revered smooth linear amplification. also a simpler design w/ no need for pentode switching or external strapping.
Item Tag: Tungsol
2x Rare SameCode 6201 Tungsol USA ~ Grail E81CC ECC801 12AT7WA ~ TopShelf ECC81
Legendary for their pure clear sound reproduction, 6201 editions are quite rare, often compared to e81cc and ecc801s. established in 1907, tungsol is a highly regarded tenured manufacturer, sought after for good reason and truly collectible.
Related Images:
1x Vintage BlackPlate GoldGrid Tungsol USA 5687 /Classic AudioTube /7119 E182CC
7581/a 7591/a 7025 7062 7189 7543 7730 / we396 we418 we421 2c51 / e180cc e182cc e80cc / 6rh2 6bp16 6rp15. introduced in 1948 by tungsol, the 5687 was designed for avionics (arinc), high transconductance for industrial + military use.
Related Images:
2x MatchedVintage BlackPlate GoldGrid Tungsol USA 5687 /ClassicAudio/7119 E182CC
5687 (introduced in 1948 by tungsol) were designed for avionics (arinc), high transconductance for industrial + military use. established in 1907, tungsol usa is a highly regarded tenured manufacturer, truly collectible and sought after for good reason.
Related Images:
2x Vintage OEBox BronzePlate GoldGrid Tungsol USA 5687 /MatchedPair /7119 E182CC
7581/a 7591/a 7025 7062 7189 7543 7730 / we396 we418 we421 2c51 / e180cc e182cc e80cc / 6rh2 6bp16 6rp15. introduced in 1948 by tungsol, the 5687 was designed for avionics (arinc), high transconductance for industrial + military use.
Related Images:
1x Vintage BronzePlate GoldGrid Tungsol USA 5687 /Classic AudioTube /7119 E182CC
7581/a 7591/a 7025 7062 7189 7543 7730 / we396 we418 we421 2c51 / e180cc e182cc e80cc / 6rh2 6bp16 6rp15. introduced in 1948 by tungsol, the 5687 was designed for avionics (arinc), high transconductance for industrial + military use.
Related Images:
Tungsol 5687 6900 7119 E182CC Flat Black Plate D Getter First Version NOS Pair
The tubes were tested on TV-7D/U and Avo ct160 at the NOS range as in the photos. I tested them on my amplifier, and they sound superb.