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Description
EL34 Mullard Platinum Matched Quad NOS NIB Blackburn Xf4 1979, rebranded PhilipsMullard Blackburn EL34 6CA7 Platinum matched quad (4) tubes Platinum matched quad within 5% of rare Xf4 type, rebranded Philips in genuine yellow Philips boxes. I had few 100 pcs boxes of these gems, so all quads I offer for sale are perfectly matched, within 5% or less. Two slots on plates, four support points on both spacers, folded plates (stapled), copper grid posts, black base! They are made in Mullard Blackburn tube plant, and etched codes the
Mullard Blackburn EL34 / 6CA7 Platinum matched quad (4) tubes
Platinum matched quad within 5% of rare Xf4 type, rebranded Philips in genuine yellow Philips boxes.
I had few 100 pcs boxes of these gems, so all quads I offer for sale are perfectly matched, within 5% or less.
Two slots on plates, four support points on both spacers, folded plates (stapled), copper grid posts, black base! They are made in Mullard Blackburn tube plant, and etched codes the same. The codes are clearly visible on photos Xf4 B9K4.
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4.5 ★★★★★
Based on 733 reviews
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Product Reviews
★★★★★ 4
Wire
It's good but it's aluminum
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Reviewed in the United States on November 22, 2024
★★★★★ 5
Works good
Great spare spool for RV application amd home build inverter setup
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Reviewed in the United States on March 5, 2026
★★★★★ 5
Good current wire
It works well
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Reviewed in the United States on October 20, 2025
★★★★★ 5
Always order big!
I needed a minimum of 2 AWG wire to create interconnects between batteries in a large bank. If you note, these say 1/0 Gauge, not AWG. What is 1/0 Gauge? Who knows, it's fake. Meaningless, because it is not standardized so you have no clue what you are getting.
What did I get for my 1/0 Gauge wire? Something that was in between 1 and 2 AWG (closer to 1). This was perfect for my needs because I knew darn well how big to order when they say gauge instead of AWG.
As a rule of thumb: If they as gauge, order 3 - 4 sizes larger than you need in AWG. This will always net you larger wire than you need but I have never had it net me wire smaller than I needed.
At the price I got it for during prime days, it was a steal for 2 AWG wire, so I win!
I hope you found this helpful!
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Reviewed in the United States on October 21, 2024
★★★★★ 5
Best main wire for price
Size: 25 FT, Style: 0 (1/0) AWG RED
Good main wire and is accurate size and length
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Reviewed in the United States on May 18, 2026