2. Socketry
Data on pin wiring as well as input/output sensitivities and impedances
are supplied as an aid to the technician (e.g., in constructing special
connecting leads) to assure optimum matching with input sources and
playback equipment.
2.1 MICROPHONE
All commercially available low-impedance dynamic stereo microphones
(200 to 500 ohms) equipped with DIN plugs may be directly connected
to this socket. For stereo recording with two mono microphones,
Adapter Lead K 626 should be used. Care must be taken that the plug
of the adapter is inserted into the socket fully up to the stop.
UHER K 110 is the extension lead for use with low-impedance mono
microphones, K 134 for use with stereo microphones (see list of ac-
cessories at the end of the Operating Instructions).
UHER dynamic stereo microphone
641 and UHER electret condenser
microphone
646 may be directly connected. Their earlier models M 640
and
645, on the other hand, require UHER Adapter K 822 for con-
nection.
signals at pins 3/2 and 5/2 (2 = ground) should be between 0.1
and 80
All commercially available condenser microphones with
(DIN 45326) 8-pin plug may be connected to this socket. The plus pole
of the microphone power supply ( + 20 V, source impedance 1.2
is located at pin 8.
2.2 HEADPHONES (5-Pin)
This socket is for connecting a stereo headphone set equipped with
a 5-pin plug (like UHER
775) for monitoring record or playback. All
high or low impedance headphones currently available on the market
may be connected (output impedance 8 to 2,000 ohms). UHER Adapter
K 633 must be used when connecting headphones with two LS-7 plugs
(like
774).
When listening to playback, the MONITOR switch
should be in off-
tape (TAPE) position and the volume regulated with the headphones
volume control
.
2.3 HEADPHONES (Phone Jack)
This facility is for connecting a stereo headphone set equipped with
a jack plug. All high or low impedance headphones currently available
on the market may be connected (output impedance 8 to 2,000 ohms).
When listening to playback, the MONITOR switch ® should be in off-
tape (TAPE) position and the volume regulated with the headphones
volume control
.
36
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