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7591A / 7868 tubes

Displaying products 1 - 5 of 5 results
GE 7868 - gray plates
GE 7868 - gray plates
Price: $47.00
Sale Price: $39.95
GE 7868 - gray plates
This 1960s GE 7868 tube has gray plates and a halo getter with lots of flashing. The exhaust tip is on the bottom. The white print on the glass has the GE logo. Tube tests as new.
on sale
Sylvania 7591A - matched pair
Sylvania 7591A - matched pair
Price: $129.00
Sale Price: $109.65
Sylvania 7591A - matched pair
The 1960s Sylvania 7591A tubes in this precisely matched pair were labeled for other companies (Hammond and Fisher). They both have gray plates and halo getters. Both tubes test as new and are matched for both current draw (52.0 mA & 52.4 mA) and Gm.
on sale
GE 7868 - matched quad
GE 7868 - matched quad
Price: $224.00
Sale Price: $190.40
GE 7868 - matched quad
The 1960s GE 7868 tubes in this precisely matched quad have gray plates and bottom exhaust tips. Two of the tubes have loose particles inside the glass. They are matched for current draw (58.0 mA-61.2 mA) and transconductance (105%-109% Gm).
on sale
Sylvania 7868 - matched pair
Sylvania 7868 - matched pair
Price: From $79.00 to $119.00
Sale Price: From $67.15 to $101.15
Sylvania 7868 - matched pair
The 1960s Sylvania 7868 tubes in this precisely matched pair have the tip on top of the bottles. The yellow or green labels have the Sylvania logo with matching date codes. See product options for current availability.
on sale
Sylvania 7868 - matched quad
Sylvania 7868 - matched quad
Price: $189.00
Sale Price: $160.65
Sylvania 7868 - matched quad
The 1965 Sylvania 7868 tubes in this precisely matched quad have gray plates, halo getters, and a top exhaust tip. The yellow labels have the Fisher logo (partial). Tubes are matched for current draw (44.2 mA-48.8 mA) and transconductance (86%-90% Gm).
on sale
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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