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Description
EL84 6BQ5 EI Mullard - NOS platinum matched quad Silver Anodes Philips toolOne platinum matched quad (4 tubes) of rare EL84 6BQ5 EI Yugoslavia made back in 90s. They are hi quality EL84 pentodes, made under Mullard Philips licence and on original Philips Mullard tooling. Silver plates, halo ring, copper grid posts, three slots in plate. They can be used in all EL84 6BQ5 applications. The same Philips Heerlen EL84 tooling was used also in Mullard Blackburn tube plant (early version, later versions had one hole instead of
One platinum matched quad (4 tubes) of rare EL84 6BQ5 EI Yugoslavia made back in 90s.They are hi quality EL84 pentodes, made under Mullard / Philips licence and on original Philips / Mullard tooling. Silver plates, halo ring, copper grid posts, three slots in plate. They can be used in all EL84 / 6BQ5 applications.
The same Philips Heerlen EL84 tooling was used also in Mullard Blackburn tube plant (early version, later versions had one hole instead of three slots), Valvo Hamburg and Siemens. These tubes were made in early 80s after EI Nis tube factory has bought complete Siemens Munich tube plant with all machines, materials, stamped plates, cathodes and winded grids. That's whay they are more expensive than some other EI batches, but they really sound like genuine Siemens - Philips EL84 / 6BQ5!
They are carefully matched by plate current and transconductance on my Metrix and Hickok testers.
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4.1 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Fun ball
It doesn’t last a whole long time, but she loves it! It’s crazy and it drives her playfulness crazy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
★★★★★ 2
No squeak balls
Color: A.Green+Orange
They don’t squeak. They bounce much either.
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Reviewed in the United States on March 25, 2026
★★★★★ 3
Too big for puppies
Color: A.Green+Orange
The balls were a bit too big for my 6 month chihuahuas:/ they are as big as a tennis ball so puppies didn’t like nor play with them
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Frenchie approved
Color: A.Orange+Blue+Green
Frenchie approved
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Soft and light
Color: A.Orange+Blue+Green
My doxie loves them
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Reviewed in the United States on April 26, 2026
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