In case there is no dc around the bip. cap:
So i understand that modern electrolyts don´t mind getting a little bit of reversed polarization?
If the signal swings around 0V and the cap is connected to a point being at ground potential, it will see a "wrong" polarity at every half wave, right? But this can be tolerated, right?
As For the noise, it is surprisingly quiet. With 200 Ohms source I really have to turn it way up to get a reading on my soundcard. No hum also.
To me it doesn´t sound too bad already.
But a matched transistor pair might have other benefits?
I may check out one channel and compare it against an INA217 preamp thats on my bench right now. If it can compete with no or little changes then it would be easiest for me to change more channels. I just doubt that it can... Sound is ok but nothing special.
From looking at the component values? |
1+ ((13k+13K)/(5k+22)) so roughly 6x but what do I know?
Ok, i can find the corresponding resistors. I just had no idea how gain is set in a circuit like this. All i know (a little) is opamps and cmos...
Discrete circuits seem so much more complicated...
Their collectors are sitting around +7.5V, so you don't want the input audio signal to to exceed that.
isn´t that actually very much voltage for an input signal?