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Schematic of Ortofon MCA-10 MC-Pre
Schematic of Ortofon MCA-10 MC-Pre
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Old 26th December 2004, 08:52 AM   #1
Jarno is offline Jarno
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Location: Rosmalen, The Netherlands
Default Schematic of Ortofon MCA-10 MC-Pre

Hello all,

Does anybody have, by any chance, the schematic of the Ortofon MCA-10 MC-headamp? I bought one on e-bay, and it works great but I would like to know more about it. It seems you can find info on the MCA-76 on the web, but not so for the MCA-10.

Regards,

Jarno.
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Old 6th November 2014, 10:49 AM   #2
QSerraTico_Tico is offline QSerraTico_Tico  Europe
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Hi, Better late than never!
Basically it's a complementary common base amplifier with only two transistors: BC485 and BC486.
The collectors are connected together and the input goes to the emitters through 2200uF capacitors. The bases are grounded.
The output is taken from the collectors through a 22uF tantalum cap.

When I have time I will draw a schematic. Ortofon was unable to provide one.
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