The Best All Vacuum Tubes 2025

1. Tung-Sol 6550 Tube Medium/Green Duet

A reissue of the Classic 6550 Tung-Sol type 3 triple getter version. It is more dynamic and three-dimensional than any other 6550.

A reissue of the Classic 6550 Tung-Sol type 3 triple getter version It is more dynamic and three-dimensional than any other 6550

2. Groove Tubes GT5U4 Rectifier Tube

Common to medium powered amps like the earlier Fender Super Reverbs and Bandmasters. May be used as a replacement for the 5Y3 for improved dynamics and power. Also some players have replaced their 5AR4 with the 5U4 in their Vox AC30 amps to reduce heat and extend the life of the power tubes, we recommended this as a "stability enhancer", if you can live with the slightly lower power.

. Groove Tubes GT5U4 Rectifier Tube

3. Groove Tubes GT-EL34-R Medium Duet Amplifier Tube

Groove Tubes GT-EL34-R Medium Duet Amplifier Tube

The original power platform behind most high-powered British guitar stacks from the ’60s onward. Output is generally between 20 and 25 watts, with pronounced mid-range punch, tight low end and crisp top end that breaks up relatively smoothly and gets a little crunchy when pushed hard. It provides a great voice that stands out in a band mix as the mids tend to power their way through an overall mix. Big brother to the EL84. The GT EL34 is based on the original Mullard EL34 of the '60s. Mullard produced it for about 15 years, and this is a faithful reproduction of the classic XF2 dual-getter version. It has a big, fat and well-defined tone and really "wakes up" reissue amps to perform like the originals. As close as you can get to vintage power tube heaven.

4. Groove Tubes EL84SDT EL84 Duet European Made

Most common low power pentode, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick, soft overdrive distortion, great for recording. European version with even more response, higher power and warmer tone.

Groove Tubes EL84SDT EL84 Duet European Made

5. Groove Tubes Premium EL34 Quartet

The Classic pentode power tube used in Marshall, Hiwatt, Laney, and similar Euro type amps. These tubes have a big bottom and a crisp top end that get crunchy when pushed hard. It also has sort of a hollow midrange response. The choice of the modern rockers, ala British Rock & Heavy Metal.

Groove Tubes Premium EL34 Quartet

6. Groove Tubes GT-EL84-S Quartet Replacement Guitar Tubes

New European version with even more response, higher power and warmer tone. Most common low power pentone, popularized in early Vox AC30 amps. Rediscovered by Matchless amps and now currently used by nearly every tube amp company. Quick, soft overdrive distortion, great for recording but usually too low volume for live gigs.

Groove Tubes GT-EL84-S Quartet Replacement Guitar Tubes

7. POWERTEC 6" x 10' Dust Collection Hose, 6 Inch Dust Collector Hose for Woodworking and Wood Shop Dust Collection Systems (70221)

The 6-Inch Left Spiral PVC Dust Collector Hose by POWERTEC POWERTEC 70239/70221/70267/70270 - A practical, safe and cost effective dust collection hose - Enhance your existing workshop dust collection and filtration systems - Length: 5' (70239), 10' (70221), 20' (70267), 50' (70270) Rated Safe This PVC hose features a flame retardant construction is temperature resistant (up to 176°F) and is capable of electrostatic discharge (when grounded). It also offers exceptional resistance to chemicals along with acidic and alkaline materials.

(1) 6 inch diameter 10 feet long left spiral clear flexible hose Perfect for any clear view dust collection system – allowing you to monitor dust/ debris separation and vapor/ smoke filtration Ultra flexible hose reinforced with spring steel wire delivers toughness and maneuverability Made from high quality PVC for durability, strength and easy installation Ideal for an assortment of sawdust collectors, air conditioning indoor ventilation ducts and 6” PVC dust collection systems for woodworking applications

8. Groove Tubes GT-12AY7 Select Preamp Tube

GT-12AY7 Select Preamp Tube

The Groove Tubes GT-12AY7 Select Preamp Tube is closest in specification to a 12AX7 and can be exchanged with a slight drop in gain. Most companies changed over to the 12AX7 as it became more common. This tube can be tried in later Marshall amplifiers in the first gain position, where the owner of these amps would like to drop the background noise and lower the gain level to plexi or early 70's vintage gain levels with its returned wider frequency response. Country of origin: Russia

9. Vacuum Tees 1/4 X 1/4 - Qty 10

Vacuum Tees 1/4 X 1/4 - Qty 10

Vacuum Tees 1/4 X 1/4 - Qty 10

10. 2 CHANNEL DWDM 1U 19IN LC CIRCULATOR

AddOn 2 Channel C-Band LC/UPC Optical Circulator 19inch Rack Mount - 100% compatible and guaranteed to work CIRCULATOR

2 CHANNEL DWDM 1U 19IN LC CIRCULATOR