Vintage British Mullard Blackburn RX1 EL84 Power Tube Pair. Both tubes have "Made In Great Britain" printed along the bottom. I see "B6" printed on one, and "B1 H6" printed on the other. They are matched and both test at 83. They also sound great!
$60 shipped first class with insurance
$50 pickup in Portland
Vintage British Mullard Blackburn RX1 EL84 Power Tube Pair
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