Heathkit AA-1214 Assembly And Operation Manual page 54

54
Harmonic Distortion
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0
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10
Intermodulation Distortion
I II
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4
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t1 .
l k. 'I I U
100
~
HEATHKIT
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Less than 0.5% from 20 Hz to 20 kHz
at 15 watts output.
Less than 0.25% at 1000 Hz with
1
watt output.
I Yl' l rAI lill AL HARMON I C OI SIO RI ION
- I W A l llf VI I
---1,
WAI i lf V[ l
1 K
FRE QU ENCY, Hz
~, , ·
/
-~
lO K JO CIK
Less than 0.5% with 15 watts output,
using 60 and 6000 Hz mixed 4:1.
Less than 0.2% at l watt output.
TYP I CAi I NHRMOUUL Al l ON Dl '.>TO RTI ON
J
I
_/
l 4 5 6 7 3 9 JO
20
WA 11\
J M
Damping Factor ...................... . Greater than 30.
Input Sensitivity ................... .
Input Overload
Hum and Noise
Phone: 2 millivolts.
Tape: 190 millivolts.
Tape Monitor: 190 millivolts.
NOTE: Input sensitivity is therms
input voltage needed to obtain 15
watts of output power per channel
into 8
Sl
loads.
Phone: Greate r than 75 millivolts.
Tape: Greater than 2.5 volts .
Tape Monitor: Greater than 2. 5 volts.
NOTE: Phono overload measurements were
made using the Phono Input Level
controls.
Phono (10 millivolt reference) -60 dB.
Tape (200 millivolt reference) -70 dB.
Volume control in minimum position
-75 dB referred to rated output.
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