1000A - 9999Z
There are many great four digit tubes such as the 7025, 6550, 5654 and 7868. These tubes tend to be high-end versions of standard tubes or variants of standard tubes though there are plenty that just exist on their own.
-
On Sale
New Matched Pair (2) JJ 7591 Vacuum Tubes
JJ Electronic
Now: $58.59Was: $65.10New Plate Current Matched Pair of JJ 7591 Vacuum Tubes There is finally a reliable 7591 that rivals the originals. These JJs are an excellent choice for your old Scott amplifier as well as many others that used the famous old 7591. The vintage 7591s are...Now: $58.59Was: $65.10 -
On Sale
New JJ 7591 Vacuum Tube
JJ Electronic
Now: $28.37Was: $31.52New Plate Current Tested JJ 7591 Vacuum Tube There is finally a reliable 7591 that rivals the originals. These JJs are an excellent choice for your old Scott amplifier as well as many others that used the famous old 7591. The vintage 7591s are almost...Now: $28.37Was: $31.52 -
On Sale
![New Matched Octet (8) Svetlana 6550C [KT88] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/36951/53732/NP022-8__93130.1724388788.JPG?c=2 "New Matched Octet (8) Svetlana 6550C [KT88] Vacuum Tubes")
New Matched Octet (8) Svetlana 6550C [KT88] Vacuum Tubes
Svetlana
Now: $452.30Was: $502.55New Plate Current Matched Octet of Svetlana 6550C Vacuum Tubes An excellent true 6550 that'll make your amp sing. These are known for their robust quality and classic American 6550 tone. Will work in place of: 6550C, 6550, KT88, 6550A Testing...Now: $452.30Was: $502.55 -
On Sale
![New Matched Sextet (6) Svetlana 6550C [KT88] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/36950/53731/NP022-6__55954.1737837894.JPG?c=2 "New Matched Sextet (6) Svetlana 6550C [KT88] Vacuum Tubes")
New Matched Sextet (6) Svetlana 6550C [KT88] Vacuum Tubes
Svetlana
Now: $341.96Was: $379.95New Plate Current Matched Sextet of Svetlana 6550C Vacuum Tubes An excellent true 6550 that'll make your amp sing. These are known for their robust quality and classic American 6550 tone. Will work in place of: 6550C, 6550, KT88, 6550A Testing...Now: $341.96Was: $379.95 -
On Sale
![New Matched Quad (4) Svetlana 6550C [KT88] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/36949/53730/NP022-4__24279.1737839205.JPG?c=2 "New Matched Quad (4) Svetlana 6550C [KT88] Vacuum Tubes")
New Matched Quad (4) Svetlana 6550C [KT88] Vacuum Tubes
Svetlana
Now: $228.69Was: $254.10New Plate Current Matched Quad of Svetlana 6550C Vacuum Tubes An excellent true 6550 that'll make your amp sing. These are known for their robust quality and classic American 6550 tone. Will work in place of: 6550C, 6550, KT88, 6550A Testing...Now: $228.69Was: $254.10 -
On Sale
![New Matched Pair (2) Svetlana 6550C [KT88] Vacuum Tubes](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/36948/53729/NP022-2__09324.1737876840.JPG?c=2 "New Matched Pair (2) Svetlana 6550C [KT88] Vacuum Tubes")
New Matched Pair (2) Svetlana 6550C [KT88] Vacuum Tubes
Svetlana
Now: $114.61Was: $127.34New Plate Current Matched Pair of Svetlana 6550C Vacuum Tubes An excellent true 6550 that'll make your amp sing. These are known for their robust quality and classic American 6550 tone. Will work in place of: 6550C, 6550, KT88, 6550A Testing...Now: $114.61Was: $127.34 -
On Sale
![New Svetlana 6550C [KT88] Vacuum Tube](https://cdn11.bigcommerce.com/s-dfccaj35/images/stencil/350x350/products/36947/53728/NP022-1__00873.1653399094.JPG?c=2 "New Svetlana 6550C [KT88] Vacuum Tube")
New Svetlana 6550C [KT88] Vacuum Tube
Svetlana
Now: $54.68Was: $60.75New Plate Current Tested Svetlana 6550C Vacuum Tube An excellent true 6550 that'll make your amp sing. These are known for their robust quality and classic American 6550 tone. Will work in place of: 6550C, 6550, KT88, 6550A Testing and/or...Now: $54.68Was: $60.75