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View and download sony bluetooth mex bt2500 installationconnections online. Typical transistor circuit this is a silicon transistor circuit showing typical voltage valueswhen the forward baseemitter voltage is 06 to 07 v the transistor is silicon. Germanium transistors will have a forward baseemitter bias voltage of 02 to 03 v this is a silicon transistor because 26 base volts minus 19 emitter volts equal a forward bias of 07 volts indicating a silicon. C bmw ag munich 01 29 0 443 679 52008 zz 1 usbaudio interface sa 6fl retrofit bmw 1 series e 81 e 82 e 87.