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(!!!!) (Best Pair #1) ECC40 Philips Import NOS made by La Radiotechnique, Chartres/France 1966 (7.0/7.3ma and 7.3/6.7ma) 1-3% matched (Highest mA and Gm) (Same Gm)
(!!) (Best Pair #2) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.2/6.9ma and 6.2/6.8ma) 1-5% matched
(!!) (Best Pair #2) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (7.1/6.3ma and 7.2/6.1ma)
(!!) (Best Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1960 (6.5/6.5ma and 6.3/6.8ma) 1-2% matched
(!!) (Best Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.5/6.5ma and 6.8/6.7ma) 1-3% matched
(READ REVIEW) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.0/6.1ma and 6.0/6.1ma) 1-2% matched
(READ REVIEW) JAN-7308 Amperex USA gold pins NOS 1977 (15.8/14.5ma and 15.2/15.4ma)
ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.3/6.0ma)
