strong pair ECC88 Philips branded HP 6DJ8, Heerlen triangle code, 1967
60,00 €
Plant: Heerlen, in the very south of Holland, 1967. ecc88 1967 pair LLL. both tubes coded: ∆7D2, triangle sign. tested on AVO MKII tester, at Va =90 v, Vg= -1,2 V.
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