Vacuum Tube - 6550A, Valve Art

Vacuum Tube - 6550A, Valve Art

Valve Art
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Starting at: $37.14
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Octal power tube (Max Plate Watts = 42W)

Apex Tube Matching
Matched versions of this tube use Apex Matching
RoHS Compliant
Item ID:
Valve Art, Apex Matched
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Apex Matched PairT-6550A-VA-MP609722123839
Apex Matched QuadT-6550A-VA-MQ609722123846
Apex Matched SextetT-6550A-VA-MS609722123853
Product Measurements by Type
No measurements are currently available for this product. Please contact us if you have any questions.
Packaging Information
Packaging DimensionsApex Matched Pair versionT-6550A-VA-MP6 in. × 4.8 in. × 2.4 in.
Apex Matched Quad versionT-6550A-VA-MQ6 in. × 4.8 in. × 4.8 in.
Apex Matched Sextet versionT-6550A-VA-MS7.1 in. × 6 in. × 4.8 in.
Single versionT-6550A-VA2.4 in. × 2.4 in. × 6 in.
Weight (Packaging)Apex Matched Pair versionT-6550A-VA-MP0.466 lbs.
Apex Matched Quad versionT-6550A-VA-MQ0.932 lbs.
Apex Matched Sextet versionT-6550A-VA-MS1.398 lbs.
Single versionT-6550A-VA0.233 lbs.
Product Measurements by Item
No measurements are currently available for this product. Please contact us if you have any questions.

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Product Reviews

4.50 out of 5 based on 2 reviews
- May 7th, 2021
5 out of 5

I bought two sextets of these for my SVTs after having decent luck with EHX and Tung Sol, the tonal difference between the two is stark, it's like it woke up the last 100 watts the amp was missing. I did have one that needed to be replaced immediately upon install due to redplating(they are still Chinese tubes after all) but AES corrected that very quickly and I had a replacement within a week. They biased solidly on both amps with no issue. They're solid, reliable, powerful, and about 95% of what the original 6550A is. It doesn't have the top end slickness of the original but if you need a 6550 that honestly meets 40 watt dissipation that will hold up on the road under fairly large load these are for you. I love them and will continue to buy them as long as they make them.

- February 17th, 2015
4 out of 5

Okay, NO, it is not a real General Electric 6550A, but it is at least keeping up with the real deal for a while. These won't last as long, but you are not paying $150 each or more. The 6550A was a real deal 42 watt valve. 6550 and KT88s were 35 watt valves. These are a good solid 40-42 watts per valve. I can't design and sell roadworthy amps if the owners cannot go find ready replacement valves. These don't quite have the same tone as the venerable GE staple of the high power USA power audio tube. These have been used in everything from Ampeg VT 1002s, SVTs and JCM800s to Conrad Johnson stereos. They do a good job in either application. I just dropped a quad into a VT1002. I forgot just how awesome these old Lee Jackson Ampegs were! WOW! Everything from the heavy hi gain JCM sound to a more classic European sound when I dropped in a quad of Winged C EL34s, or Sinos. All the modern valve makers, and companies like Valve Art, Tube Amp Doctor, Ruby, and to a lesser extent GT are riding the mfgrs for better valves, and it seems we are seeing some improvements! These VA 6550As are pretty nice! I wish I could toss in an extra half a star, as these just fall a teeny bit short for me. The top end is just a bit whispy for me. Chinese tubes can be that way. They don't quite have that ringing singing top end. Close, but ....

Substitute Products

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