ioaudio
Well-known member
i finished my project around the ef12 tube. the design originates from the circuit i posted recently, but i got rid of the ec92 stage.
like my first mic pre i build a small case with exernal psu, i can run both pres from one supply.
some pics from the new one:
edit: changed cathode resistor to 2,2k
like my first mic pre i build a small case with exernal psu, i can run both pres from one supply.
some pics from the new one:
![mic2.jpg](https://proxy.imagearchive.com/3f7/3f78c01774e41089dde67e6d3e13e3e5.jpg)
![mic2innen.jpg](https://proxy.imagearchive.com/3bf/3bfa075b4f231f4b3c879a700a67221c.jpg)
![mic2schematic.jpg](https://proxy.imagearchive.com/768/7688dc0ab756dc9608a81e327464b27d.jpg)
edit: changed cathode resistor to 2,2k