(!!) (#1 ECC40 Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (matched on Amplitrex)
(!!) (#1B ECC40 Pair) ECC40 Siemens Halske made by La Radiotechnique France NOS 1967
(!!) (#3 ECC40 Pair) ECC40 Siemens NOS made by La Radiotechnique, Chartres/France 1967-1972
(!) (#2 ECC40 Pair) ECC40 Siemens Halske made by La Radiotechnique France NOS 1967
ECC40 Philips and Philips MIniwatt NOS made by La Radiotechnique, Chartres/France 1967-1970
