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ZS6KM > TECH 19.06.09 13:58l 30 Lines 1342 Bytes #999 (0) @ WW
BID : 534372_ZS6KM
Read: GUEST
Subj: Panasonic DVX-100 and external Mics
Path: IZ3LSV<IK2XDE<DB0RES<ON4HU<ON0BEL<ZS0MEE<ZS0DLD<ZS6KM
Sent: 090619/1120z @:ZS6KM.PTA.GAU.ZAF.AF Pretoria Winlink #:534371
From: ZS6KM@ZS6KM.PTA.GAU.ZAF.AF
To: TECH@WW
For quality music recordings the internal stereo microphone
of the DVX100 is not good enough, but the camera has two
sockets for the use of XLR microphones with switchable
48 volt supplies. On one channel I am using a MC-200 from
Panasonic which works great, but unfortunately the price
of these microphones is too high to buy a second one for
the other channel. As I do have a Sennheiser microphone,
which is very high quality but is only powered from a
little cell battery (V13GA) which is exhaused after a
prolonged concert session, I tried to make a plug and use
the power from the camera. Unfortunately nobody sofar could
tell me how the external voltage of 48 volts which comes
from the camera is reduced to a usable level in the MC-200,
I have tried to make a voltage divider to bring the 48 volts
down to 1.5 volt, but the result sofar was not very encouraging.
Although the cables are all well shielded, I get a high hum
level on the mic as soon as I switch on the internal mic
power, however, if I put an external battery at the end of
the shielded lead all works fine without hum.
Can anyone supply me with a circuit which would allow me
to use the internal power, the components have to be small
enough to fit into an XLR connector?
73 de Mario, ZS6KM@ZS6KM.PTA.GAU.ZAF.AF
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