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Valves
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Valves
Valvo E88CC - Philips/Valvo,Heerlen, '62
Telefunken PCC88 - Telefunken grey shield, Ulm, '68
Siemens ECC88 - Siemens-Halske, grey shield, Munchen, '61
Amperex 7308, green, USA, '68
Amperex 6ES8 - Amperex A frame dimple getter, Heerlen '73
Siemens codes - A=6992/E 88CC family 4=revision 4 0=last digit of year, 1970 B=month, feb.
E188CC ref photo from "tubemonger" - Siemens & Halske E188CC, 1960, Munich
300b
Amprex, ECC88 D getter
Late Telefunken ECC189
ECC88 ... specs chart
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