EL34 6CA7 Mullard Xf3 NOS Platinum Matched Quad Blackburn 1975 Rebranded Siemens
SKU: 60147520593

EL34 6CA7 Mullard Xf3 NOS Platinum Matched Quad Blackburn 1975 Rebranded Siemens

$562.27 $624.75
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Description

EL34 6CA7 Mullard Xf3 NOS Platinum Matched Quad Blackburn 1975 Rebranded SiemensOne perfectly matched quad of genuine EL34 6CA7 made by Mullard, Blackburn in 1975, Xf3 codes. They are rebranded Siemens (Siemens has never made any EL34!), NOS NIB, in original Siemens boxes. Top mica spacer with 10 support points, folded plates (stapled), two slots on plates, black base with central hole in guiding pin. I had a few dozen of these tubes (all the same date codes!!!), and all quads I have are carefully tested and matched by plate

One perfectly matched quad of genuine EL34 / 6CA7 made by Mullard, Blackburn in 1975, Xf3 codes. 


They are rebranded Siemens (Siemens has never made any EL34!), NOS NIB, in original Siemens boxes. 
Top mica spacer with 10 support points, folded plates (stapled), two slots on plates, black base with central hole in guiding pin. 


I had a few dozen of these tubes (all the same date codes!!!), and all quads I have are carefully tested and matched by plate current on my Metrix U61-B tester. Due to big number of tested tubes, they are matched within 5% or less!!! These are very strong examples, selected from big number of the same batch tubes!

It's really hard to find four practically exact genuine NOS Mullard EL34 with perfect prints and the same etched codes today, be fast and take this opportunity while they are still in stock!!!












This is a private listing and I do not give a warranty about the quality of the valves, and I do not accept returns. These valves are carefully matched and they are 100% in perfect working condition, I simply can not take responsibility for some users who do not know how to change tubes in their amplifiers.

If you buy any item on ebay from me and for if you are not fully satisfied for any reason or have any complains, please send me message before leaving negative or neutral feedback or opening a case. I really do care about your satisfaction and I’ll do my best to solve any kind of problem.

I collect tubes and tube gear for more then 35 years and I start to sell recently, please be sure to check my other items and visit my store for more rare NOS tubes and parts.

I have more than 250000 NOS tubes in stock and just small part is listed here, if you are interested in any specific tube or part, please send me message.

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Exchange/Return Notes
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SKU: 60147520593

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4.1 ★★★★★
Based on 1371 reviews
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Sunny in AZ
New York, US
★★★★★ 5
Great price for a great product
Color: Coal Black
Excellent quality and great price to boot. Easy to assemble and folds up easily to be stored. We are using it as a privacy screen when we have company that needs to sleep on the couch and also to block off a hallway leading to a guest suite. It looks great and is as described in the ad
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
C
Verified Purchase
Carissa L
Lexington, US
★★★★★ 1
No.
Color: Coal Black, Color: Coal Black
This was horribly made and a nightmare to put together. You have to basically bend the bars to get the coverings attached. The sizes don't match. The stickers that label the parts are impossible to remove and if you do get them off theres a lot of residue left behind. On top of that once it was put together I noticed theres a big dirty foot print on it which is definitely not mine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026
D
Verified Purchase
Duckie mom
Dallas, US
★★★★★ 3
You have to add weight to it
Color: Coal Black
It does its job and it was easy to put together but it's a little on the flimsy side and it will easily be knocked down. So you're going to have to figure out a way to make the legs heavier? I used cinder blocks, single cinder blocks and it works just fine. Just know that it will knock over super easy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
O
Verified Purchase
Oneida P
Lowell, US
★★★★★ 5
The snap to put them together.
Color: Coal Black
This came in handy in the foyer. I didn’t want to see the door from my couch. I must be weak found it hard to snap them together. I kept 2 my daughter took the other 2.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
J
Verified Purchase
Jennifer Cal
Lexington, US
★★★★★ 5
I have 2!
Color: Coal Black
My office is in my loft. But there are things along the wall I don’t want to look at. These work great. Hides what I don’t want to see & is a classy look in the room. Sturdy, easy to assemble, well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026

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