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.
-
New Matched Quad (4) Tung-Sol 7591A Reissue Vacuum Tubes
Tung-Sol
$208.12New Plate Current Matched Quad of Tung-Sol 7591A Reissue Vacuum Tubes Built around the same specs as the original Tung-Sol 7591A, this is the perfect choice for those looking to replace tubes in...$208.12 -
New Tung-Sol 7591A Reissue Vacuum Tube
Tung-Sol
$50.48New Plate Current Tested Tung-Sol 7591A Reissue Vacuum Tube Built around the same specs as the original Tung-Sol 7591A, this is the perfect choice for those looking to replace tubes in their Scotts,...$50.48 -
New Matched Pair (2) Electro-Harmonix 7868 Vacuum Tubes
Electro-Harmonix
$99.38New Plate Current Matched Pair of Electro-Harmonix 7868 Vacuum Tubes Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently...$99.38 -
New Matched Quad (4) Electro-Harmonix 7868 Vacuum Tubes
Electro-Harmonix
$195.89New Plate Current Matched Quad of Electro-Harmonix 7868 Vacuum Tubes Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently...$195.89 -
New Electro-Harmonix 7868 Vacuum Tube
Electro-Harmonix
$47.61New Plate Current Tested Electro-Harmonix 7868 Vacuum Tube Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently being made...$47.61 -
New Matched Pair (2) Electro-Harmonix EF86 Vacuum Tubes
Electro-Harmonix
$67.97New Gain Matched Pair of Electro-Harmonix EF86 (6267) Vacuum Tubes There is finally a new production EF86 and a great audio pentode for many different applications. The vintage EF86s, while having...$67.97 -
New Electro-Harmonix EF86 Vacuum Tube
Electro-Harmonix
$33.12New Gain Tested Electro-Harmonix EF86 (6267) Vacuum Tube There is finally a new production EF86 and a great audio pentode for many different applications. The vintage EF86s, while having great tone,...$33.12 -
New Matched Quad (4) 6973 Electro-Harmonix Vacuum Tubes
Electro-Harmonix
$141.92New Plate Current Matched Quad of Electro-Harmonix 6973 Vacuum Tubes Thanks to Electro-Harmonix the 6973 is finally affordable and easy to find! This tube has long caused trouble as the originals are...$141.92 -
New Electro-Harmonix 6973 Vacuum Tube
Electro-Harmonix
$35.29New Plate Current Tested Electro-Harmonix 6973 Vacuum Tube Thanks to Electro-Harmonix the 6973 is finally affordable and easy to find! This tube has long caused trouble as the originals are so scarce...$35.29 -
New Matched Pair (2) Electro-Harmonix KT90 Vacuum Tubes
Electro-Harmonix
$166.46New Plate Current Matched Pair of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best...$166.46 -
New Matched Quad (4) Electro-Harmonix KT90 Vacuum Tubes
Electro-Harmonix
$332.34New Plate Current Matched Quad of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best...$332.34 -
New Matched Octet (8) Electro-Harmonix KT88 Vacuum Tubes
Electro-Harmonix
$557.44New Plate Current Matched Octet of Electro-Harmonix KT88 Vacuum Tubes The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is...$557.44