Four (4) pcs. vintage Mullard EL84 vacuum tubes
Philips label but manufactured at the Mullard Blackburn Factory in the U.K.
EL84 = 6BQ5
Output pentode
Codes: kM1 B5C2, kM1 B5C2, kM1 B1C4, kM2 B601
Construction: Grey stapled plates, halo getter with double supports, copper grid posts
Thoroughly tested and matched on calibrated Hickok 533A tube tester for Gm. Also tested at Va=250V, Vg=250V, Vg1= -7,3V for Ia with the following results:
49 mA/7,000, 51 mA/7,400, 52 mA/7,500, 55 mA/7,250 μMhos (48 mA/7,500 μMhos = 100%)
NOS tubes in original boxes
Made in Great Britain
This item is sold As-Described
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