Liebe/-r Experte/-in,
ich habe folgenden Text auf englisch verfaßt. Bitte hier auf deutsch antworten.
_I included http://www.epanorama.net/circuits/tm_adapt.gif into this: http://i.imgur.com/FwG8f.jpg
The goal of the circuitry is to take the output of my computer’s headphones speaker which is at about 2.4 Volts Vpp(You see that as jack symbol in the upper left of http://i.imgur.com/FwG8f.jpg) and to mix both signals using the virtual mass opamp circuitry. Then the signal is fed into a 600Ohms:600Ohms transformer’s central tapping. According to http://www.epanorama.net/circuits/tm_adapt.gif this should be the tape out connection ie. audio source. After the transformer the signal should be mixed with the wave of the phone line.
What do I need to change for my circuity to transmit well-audible audio into the telephone line?
Right now it is almost quiet._