Wunder Audio CM12 - Manual

1. CM12
The Wunder Audio CM12 Tube Microphone is targeted to the
professional with the most demanding criteria. The CM12 uses the
larger Hiller T14/1 output transformer that was standard in the early
C12. The beautiful hand made capsule is a CK12 style. These
boutique microphones are hand assembled in Texas per customer’s
order. Tubes are hand tested NOS GE 5-star 6072.
It should be stressed that vacuum tubes, with their heater filaments,
are much more delicate than solid-state components. Consequently,
the user should take great care in handling the microphone. A drop
from even a moderate height may cause the filament to break and
may result in immediate failure of the microphone. It would be
advisable for the user to keep a spare tube – specially selected by
the Wunder Audio Service Department – always ready for
replacement.
It is important to note that the tube may have become slightly
unplugged from the tube socket during shipping. If the microphone
has no audio output, 99% of the time it is a result of a slightly
unplugged tube.
How to Replace the Vacuum Tube
Repairs are to be carried out only by experienced, authorized
service personnel. Unauthorized opening of, or modification to
the equipment shall void the warranty.
The microphone tube requires a high operational voltage.
Contact with the voltages present in the interior of the
microphone and PSU may result in injury or death; therefore,
the microphone and PSU must be opened only by an
authorized, qualified technician.
The microphone must be operated only with the supplied
cable. Because hazardous voltages are generated by the PSU
that may result in injury or death, always ensure that the
microphone cable is undamaged. Damaged cables must no