Brauner Microphones Valvet - Manual (Page 6)

Before operating the device you should check
for the correct setting of the mains voltage. This
can be set to either 115 V or 230 V. If you are not
sure about the voltage in your environment, you
should ask a qualified technician or electrician.
Before turning on the power, be sure that the in-
put of your microphone preamp or the channel
is muted, just to avoid any possible damage to
your speaker system.
Now use the power switch on the PSU‘s front
panel to turn the microphone on. The red LED
should now glow softly. Turn up the volume of
your preamp. Approximately 20 seconds after
the microphone has been switched on, it is rea-
dy for use. We do however recommend to let it
warm up for another 15 minutes to get the tube
and all other parts into a state of thermal equi-
librium.
There are two more switches on the PSU‘s front-
panel. With the left one you can invert the pola-
rity, with the right one you can change the di-
rectivity of the Microphone between omni and
cardioid.
GettING StaRteD
4
5
6 7
8
1 2 3
phase switch
Directivity
on /off switch
power connector
1
2
3
4
5
6
7
8
Voltage switch
XLr out
Ground Lift switch
microphone in