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(!!!!!) (Best Single) E81CC=6201=12AT7 Philips Mullard UK SQ NOS gold pins 1974 (11.5/10.8ma) 1-5% section balance
(!!!!!) (Best Single) E81CC=6201=12AT7 Philips Mullard UK SQ NOS gold pins 1974 (9.6/10ma) 1-3% section balance
(!!!!) (Good Value Single) E80CC=6085 Siemens Holland gold pins NOS 1963 (5.0/5.5ma)
(!!!!) (Single) E80CC=6085 Philips Holland SQ gold pins NOS 1972 (6.2/7.8ma)
(!!) (Good Value Single) 6201=12AT7 Valvo Germany rebranded Philips SQ 1970 (6.8/7.8mA)
