Marconiphone/Ferguson generic cross reference ?
of 1970s transistors
eg I found related crosses for AF2 = BC109, AF6 = BC107 but what is OP1A, PNP, audio power transistor and its complement OP1B -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
Marconiphone/Ferguson generic cross reference ?
Some BRC / Marconiphone / Ferguson generic cross references
as the info does not seem to be out there. Late 1960s / 1970s transistors, from a few Newnes books, some duplication it would seem in lower spec uses AF1 = BF187 AF2 = BC109 AF4 = BFY52 AF6 = BC107 AF8 = AC128 AF11 = BC186 AF13 = BC186 OP1A = OP2A = AC128 OP1B = OP2B = AC176 RF7 = BF194 Some complementary pairings of the time AC142, AC141 AC154, AC157 AC188, AC187 AD162, AD161 AC186, AC131 AC153, AC176 -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
Marconiphone/Ferguson generic cross reference ?
"N_Cook" wrote in message ... of 1970s transistors eg I found related crosses for AF2 = BC109, AF6 = BC107 but what is OP1A, PNP, audio power transistor and its complement OP1B If my memory serves me well AC128 & AC127 complimentary push pull output Regards John. |
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