Skip to content

Home
About Us
All Products
Shop By Tube Number
Shop by Brand
Our Guarantee
Contact Us

Shop by Tube Number

Home
About Us
All Products
Shop By Tube Number
Shop by Brand
Our Guarantee
Contact Us

Shop by Tube Number

Item added to your cart

View cart

Collection: Sylvania Vacuum Tubes

Sort by:

423 products

Sort

Sort

423 products

Sort by:

Remove all

423 products

(1) Tested Strong Unbranded Sylvania 5931 Tube (Mil Spec 5U4WG) Black Plate Triple Mica

(1) Tested Strong Unbranded Sylvania 5931 Tube (Mil Spec 5U4WG) Black Plate Triple Mica

Regular price $54.95 USD

Regular price Sale price $54.95 USD
(1) Tested Balanced 1951 Sylvania 6SL7GT Tube Tall Bottle Gray Plates Code 126

(1) Tested Balanced 1951 Sylvania 6SL7GT Tube Tall Bottle Gray Plates Code 126

Regular price $22.95 USD

Regular price Sale price $22.95 USD
(1) Tested Sylvania JAN CHS 6X5WGT Tube Code 6145 Mil Spec 6X5 GT Rectifier Tube

(1) Tested Sylvania JAN CHS 6X5WGT Tube Code 6145 Mil Spec 6X5 GT Rectifier Tube

Regular price $22.95 USD

Regular price Sale price $22.95 USD
(1) Tested Very Strong Sylvania 25AV5GT Tube Gray Plates Halo Getter Pentode (d)

(1) Tested Very Strong Sylvania 25AV5GT Tube Gray Plates Halo Getter Pentode (d)

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Strong Sylvania 25AV5GT Tube Gray Plates Halo Getter Beam Pentode (c)

(1) Tested Strong Sylvania 25AV5GT Tube Gray Plates Halo Getter Beam Pentode (c)

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Very Strong Sylvania 25AV5GT Tube Gray Plates Beam Pentode Tube (b)

(1) Tested Very Strong Sylvania 25AV5GT Tube Gray Plates Beam Pentode Tube (b)

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Very Strong Sylvania 25AV5GT Tube Beam Pentode Tube Gray Plates (a)

(1) Tested Very Strong Sylvania 25AV5GT Tube Beam Pentode Tube Gray Plates (a)

Regular price $8.95 USD

Regular price Sale price $8.95 USD
Tested Matched Pair 1945 Sylvania JAN CHS 3S4 Tubes with Boxes Date Codes E4 (a)

Tested Matched Pair 1945 Sylvania JAN CHS 3S4 Tubes with Boxes Date Codes E4 (a)

Regular price $18.95 USD

Regular price Sale price $18.95 USD
(1) Tested Sylvania JAN CHS 3D6 1299 Tube VT-185 Loctal Tube 3D6 Pentode (b)

(1) Tested Sylvania JAN CHS 3D6 1299 Tube VT-185 Loctal Tube 3D6 Pentode (b)

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Balanced 1953 Sylvania JAN CHS 6SL7GT Tube & Box Code 343 Gray Plates

(1) Tested Balanced 1953 Sylvania JAN CHS 6SL7GT Tube & Box Code 343 Gray Plates

Regular price $36.95 USD

Regular price Sale price $36.95 USD
(1) Tested 1945 Sylvania JAN CHS 6J6 Tube and Box Mil Spec Medium Mu Twin Triode

(1) Tested 1945 Sylvania JAN CHS 6J6 Tube and Box Mil Spec Medium Mu Twin Triode

Regular price $9.95 USD

Regular price Sale price $9.95 USD
(1) Tested Sylvania 17C5 17CU5 Tube with Box Date Code ABC hh 17C5 Tube 17CU5

(1) Tested Sylvania 17C5 17CU5 Tube with Box Date Code ABC hh 17C5 Tube 17CU5

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested 1955 Sylvania 6W6GT Tube with Box Date Code BL Beam Pentode Tube (a)

(1) Tested 1955 Sylvania 6W6GT Tube with Box Date Code BL Beam Pentode Tube (a)

Regular price $11.95 USD

Regular price Sale price $11.95 USD
(1) Tested 1957 Sylvania 7B8 Tube Code 7-13 Loctal Tube Pentagrid Converter Tube

(1) Tested 1957 Sylvania 7B8 Tube Code 7-13 Loctal Tube Pentagrid Converter Tube

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Sylvania 6DN7 Tube with Box Red Letters Date Code de EAN Dual Triode

(1) Tested Sylvania 6DN7 Tube with Box Red Letters Date Code de EAN Dual Triode

Regular price $18.95 USD

Regular price Sale price $18.95 USD
(1) Tested Sylvania 6DE4 Tube with Box Date Code dc EGA 6DE4 Half Wave Rectifier

(1) Tested Sylvania 6DE4 Tube with Box Date Code dc EGA 6DE4 Half Wave Rectifier

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Very Strong Sylvania 6AY3 Tube with Box Code db AUW Rectifier Tube

(1) Tested Very Strong Sylvania 6AY3 Tube with Box Code db AUW Rectifier Tube

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Sylvania 6AU4GTA Tube with Box Code db EJX 6AU4 GTA Rectifier Tube

(1) Tested Sylvania 6AU4GTA Tube with Box Code db EJX 6AU4 GTA Rectifier Tube

Regular price $10.95 USD

Regular price Sale price $10.95 USD
(1) Tested Zenith 11KV8 Tube with Box Date Code 0-39 Sylvania EIA Triode Pentode

(1) Tested Zenith 11KV8 Tube with Box Date Code 0-39 Sylvania EIA Triode Pentode

Regular price $12.95 USD

Regular price Sale price $12.95 USD
(1) Tested Sylvania 6DA4A 6DM4A Tube with Box Red Letters Code dc EDP Rectifier

(1) Tested Sylvania 6DA4A 6DM4A Tube with Box Red Letters Code dc EDP Rectifier

Regular price $9.95 USD

Regular price Sale price $9.95 USD
(1) Tested Sylvania 6FM7 Tube with Box Date Code ec EZZ Dual Triode Vacuum Tube

(1) Tested Sylvania 6FM7 Tube with Box Date Code ec EZZ Dual Triode Vacuum Tube

Regular price $9.95 USD

Regular price Sale price $9.95 USD
(1) Tested Sylvania 6AU4GTA Tube Coin Base Red Letters with Box Date Code EMC gh

(1) Tested Sylvania 6AU4GTA Tube Coin Base Red Letters with Box Date Code EMC gh

Regular price $11.95 USD

Regular price Sale price $11.95 USD
(1) Tested 1956 Sylvania 25Z6GT Tube with Box Code 6-52 High Rectifier Tube

(1) Tested 1956 Sylvania 25Z6GT Tube with Box Code 6-52 High Rectifier Tube

Regular price $11.95 USD

Regular price Sale price $11.95 USD
(1) Tested Sylvania 6BH11 Tube with Box Code hk AAL Twin Triode Pentode Tube

(1) Tested Sylvania 6BH11 Tube with Box Code hk AAL Twin Triode Pentode Tube

Regular price $8.95 USD

Regular price Sale price $8.95 USD
(1) Tested Sylvania 12AU6 Tube with Box Date Code ha ACG Sharp Cutoff Pentode

(1) Tested Sylvania 12AU6 Tube with Box Date Code ha ACG Sharp Cutoff Pentode

Regular price $9.95 USD

Regular price Sale price $9.95 USD
(1) Tested Balanced 1958 Sylvania 50X6 Tube with Box Code 8-52 Loctal Rectifier

(1) Tested Balanced 1958 Sylvania 50X6 Tube with Box Code 8-52 Loctal Rectifier

Regular price $13.95 USD

Regular price Sale price $13.95 USD
(1) Tested 1950 Sylvania 50Y7GT Tube with Box Code 0-52 50Y7 GT Rectifier Tube

(1) Tested 1950 Sylvania 50Y7GT Tube with Box Code 0-52 50Y7 GT Rectifier Tube

Regular price $9.95 USD

Regular price Sale price $9.95 USD
(1) Tested 1957 Sylvania 2D21 Tube with Box Date Code 722 Tetrode Thyratron Tube

(1) Tested 1957 Sylvania 2D21 Tube with Box Date Code 722 Tetrode Thyratron Tube

Regular price $7.95 USD

Regular price Sale price $7.95 USD

1
2
3
4
5
…
16

Don't miss out!

Subscribe to the Classic Currents email list to stay informed on exclusive offers, discount codes, and new arrivals. Your privacy is respected, and you may opt-out at any time.

Email

Home
Search
Payments
Shipping
Our Guarantee
Return Policy
About Us
Contact Us

Payment methods

© 2026, Classic Currents LLC

Privacy policy
Refund policy
Terms of service
Shipping policy
Contact information
Cookie preferences

Choosing a selection results in a full page refresh.
Opens in a new window.