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AC POWER
Plug the AC power cord in 105 volt to 125
volt, 50 to 60 cycle power line. The power
used by the C22 is 34 watts.
INPUT CONNECTIONS
The C22 provides eight separate program
inputs controlled by the INPUT SELECTOR
switch. One input for tape monitor or tape
comparison is controlled by the TAPE switch.
The input program connections should be
made in accordance with Table 1.
Figure 15. INPUT CONNECTIONS.
CONNECTION
TAPE MONITOR
(COMPARE)
AUX
TAPE
TUNER 1 &
TUNER 2
FUNCTION
The tape monitor input accepts a signal from a tape
recorder with a monitor head and preamplifier
The auxiliary input accepts any auxiliary service requir-
ing flat frequency response, such as a T.V. set, tuner,
tape recorder with its own playback preamplifier, etc.
The tape input operates with tape machines containing
their own playback preamplifier
The tuner inputs accept AM and FM outputs from a
stereo tuner or a pair of stereo tuners or the multiplex
output of an adapter of multiplex tuner
INPUT
SENSITIVITY
0.25V
0.25V
0.25V
0.25V
INPUT
IMPEDANCE
250K
250K
250K
250K
If a phono cartridge requires less than
47,000 ohms load impedance, a resistor can
be added across the terminals of the car-
tridge to achieve the correct termination.
The following chart may be used as a guide:
Desired Impedance
47,000 ohms (47K)
37,000 ohms (37K)
27,000 ohms (27K)
15,000 ohms (15K)
6,800 ohms (6.8K)
Resistor Across Input
No Resistor
180,000 ohms (180K)
62,000 ohms (62K)
22,000 ohms (22K)
8,200 ohms (8.2K)
CONNECTION
PHONO 1 & 2
MAGNETIC
TAPE HEAD 1 & 2
2-10
MV
MIC
FUNCTION
These jacks are to be used with magnetic cartridges. . .
These jacks are to be used with a tape deck that does
not contain its own playback preamplifier
These jacks are to be used with high impedance crystal
or dynamic microphones
INPUT
SENSITIVITY
2 MV
2
MV
2.5 MV
INPUT
IMPEDANCE
47K
1 megohm
1 megohm
9