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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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4.7 ★★★★★
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★★★★★ 5
My husband says it works good
Works good for a Volvo
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Diy tool good stuff
Good fit works as advertised
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Reviewed in the United States on February 25, 2026
★★★★★ 5
Práctico
Tal cual a la medida que do perfecto para los cambios de filtro llego sin daños
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Good quality and price
This fits the original cover that was on my car. Made the removal of the oil filter cap very easy effortless.
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Reviewed in the United States on December 8, 2025
★★★★★ 1
not tight enough
It did slip on my BMW M5 F90 oil filter — it wasn’t tight enough. I had to use a microfiber cloth to fill the gap and make it tighter in order to loosen the oil filter.
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Reviewed in the United States on May 14, 2026