Philips ECH84 - Triode - Heptode 1961 page 1 2 3 4 5 6 7 8 ECH84 sheet 1 2 3 A B C D FP date 1961.06.06 1961.06.06 1961.06.06 1961.06.06 1961.06.06 1961.06.06 1961.06.06 2005.05.06 (1 views)
Philips ECH84 - Triode - Heptode 1970 page 1 2 3 4 5 6 7 ECH84 sheet 1 2 3 4 5 6 FP date 1970.01 1970.01 1970.01 1970.01 1970.01 1970.01 1999.08.10 (1 views)
Philips ECH83 - Triode - Heptode 1957 page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ECH83 sheet 1 2 3 A B C D E F G H I J FP date 1957.12.12 1957.12.12 1957.12.12 1958.10.10 1958.10.10 1958.10.1 (1 views)
Philips ECH83 - Triode - Heptode 1969 page 1 2 3 4 5 ECH83 sheet 1 2 3 4 FP date 1969.12 1969.12 1969.01 1969.12 1999.08.15 (1 views)
Philips ECH81 - Triode - Heptode 1954 page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ECH81 sheet 1 2 3 4 5 A B C D E F G H I J K L M FP date 1954.06.06 1954.06.06 1958.06.06 1958.0 (1 views)
Philips ECH81 - Triode - Heptode 1969 page 1 2 3 4 5 6 7 ECH81 sheet 1 2 3 4 5 6 FP date 1969.12 1969.01 1969.01 1969.01 1969.01 1969.01 1999.08.15 (1 views)
Philips ECH4 - Triode - Heptode page 1 2 3 ECH4 sheet 1 2 FP date 1948.09.24 1948.09.24 1999.06.26 (1 views)
Philips ECH21 - Triode - Heptode page 1 2 3 4 5 ECH21 sheet 1 2 3 4 FP date 1953.04.04 1953.04.04 1953.04.04 1953.04.04 1999.06.26 (1 views)