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Ruby Tubes 6550ASTR Power Tubes

Ruby Tubes 6550ASTR Power Tubes

Ruby Tubes 6550ASTR Power Tubes Single Tube

Single Tube

Item # 50027-S
In stock, ready to ship!

$46.63

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Matched Pair

Item # 50027-MP
No longer available

$92.25

Sold Out
Ruby Tubes 6550ASTR Power Tubes Matched Quad

Matched Quad

Item # 50027-MQ
In stock, ready to ship!

$183.73

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Ruby Tubes 6550ASTR Power Tubes

About This Item

New remake of the GE6550, with a tough, straight bottle.

All Ruby Power Tubes are matched using the Magic Parts™ matching process, and the base of the tube is labeled with the plate current and transconductance matching measurements. By matching these parameters, optimal performance and long life are ensured for your amplifier. Ruby Tubes come with a 6-month replacement warranty.


CALIFORNIA PROPOSITION 65 WARNING
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


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5.0
  • 5.00 average rating from 1 reviews
5.0

Great customer service.

By

Verified Buyer


I bought a new set of tubes for my Marshall JMP and realized I ordered the wrong power tubes. StewMac helped me out with exchanging what I had for these 6550’s with no problems whatsoever. They didn’t even charge me for shipping the second time. Great experience, and now my amp is up and running. Thanks guys!