A
high-performance AM/FM stereo tuner, featuring new IF IC and phase linear
ceramic filters for excellent selectivity and phase characteristics.
The TX-8100
is one of Pioneer's new breaded of stereo tuners. Featuring a broad range of
newly-developed circuit elements,an accomplished front-end and near-perfect
performance characteristics, it offers unique value and even more sensitivity
and selectivity. Its front-end section employs dual gate MOS-type FETs in the
RF stage amd mixing stage, coupled with a frequency linear 4-gang variable
capacitor, the enire package adding up to sensitivity rated at 1,8 µV (IHF).
For even greater performance, the TX-8100's IF section uses new IC and phase
linear ceramic filters to achieve a selectivity ratio of more than 80 dB (IHF)
and capture ratio of 1 dB (IHF).
Additionally,
in the important MPX circuit, high performance IC is employed for stability and
reliability. Overall, this is a first-rate unit for advanced stereo component
applications. Among its features are an FM muting switch that cancels
inter-station noise, an MPX noise filter for anhancing tonal quality by
suppressing irritating high frequency noise in stereo broadcasts, and multipath
output terminals to permit accurate antenna direction. Output level controls
for AM and FM are independently adjustable. And because output terminals of the
TX-8100 are both fixed and variable, it
is possible (by utilizing the fixed output) to direct-record from the tuner by
bypassing your amplifier. Other features are equally significant. The FM dial
scale is the wide linear type for precise, easy station tuning. There is a
headphone output jack with an adjustable level control so that you can enjoy
stereo listening with the tuner only. And much more. If you have been seeking
an AM/FM stereo tuner offering the rare blend of advanced electronics plus a
practical price, the TX-8100 is for you. A very important addition to the
Pioneer line of quality stereo components.
Special
Features
4-Gang
variable capacitor and Dual-Gate MOS type FETs in FM Front-End.
Local
oscillator with Buffer circuit.
New
high-performance large scale integrated circuits for FM IF section.
Phase-Linear
ceramic filters in the FM IF section for excellent selectivity characteristics.
MPX IC for
excellent separation and SCA Beat rejection.
FM Multipath
output terminals.
Double-Action
FM Muting circuit with read reley.
MPX Noise
filter.
Precise
flexible signal meter.
Improved AM
Tuner performance.
Exclusive AM
IC with superb AGC (Automatic Gain Control) characteristics.
Ceramic
filters in the AM IF section.
Headphone
output jack provided.
Fixed and
variable output level controls.
Specifications
FM Section
Circuitry: 2 MOS FETs; 1-stage RF amplifier; 4-gang variable capacitor; 6-stage limiter;
PLL MPX circuit
Usable
Sensitivity (IHF): 1,8 µV
Capture
Ratio (IHF): 1 dB
Selectivity
(IHF): 80 dB
Signal-to-Noise
Ratio: 70 dB
Image
Rejection ((8 MHz): more than 85 dB
IF Rejection
(98 MHz): more than 100 dB
Spurious
Rejection: more than 100 dB
AM
Suppression: 55 dB
Harmonic
Distortion:
Mono : less than 0,2%
Stereo
: less than 0,4%
Frequency
Response:
20 Hz to 15
kHz (+0,2 dB -2,0 dB)
50 Hz to 10
kHz (+0,2 dB -0,5 dB)
Stereo
Separation:
More than 40
dB at 1 kHz;
More tha 30
dB at 50 Hz - 10 kHz
Subcarrier
Suppression: 65 dB
Antenna
Input: 300 Ω balanced; 75 Ω unbalanced
Muting: On-Off
MPXNoise
Filter: On-Off
AM Section
Circuitry: 1-stage RF amplifier; 3-gang variable
capacitor;
Sensitivity: 300 µV/m (IHF, ferrite antenna); 15 µV (IHF)
Selectivity: 40 dB
Signal-to-Noise
Ratio: 50 dB
Image
Rejection: more than 65 dB
IF
Rejection: more than 85 dB
Antenna: Built-in ferrite loopstick antenna
Audio
Section
Output
Level/Impedance:
Fixed
: 650 mV/4,7 k Ω
Variable
: 70 mV to 2 V / 300 Ω
Headphone
: 150 mV (8 Ω)
Semiconductors: 2 FETs;
4 ICs; 19 Transistor; 9 Diodes
Power
Requirements : 120 V 60 Hz (USA, Canada)
or 110, 120, 130, 220, 240 V (switchable) 50/60 Hz
Power
Consumption: 27 watts
AC
Outlet: 1 unswitched
Dimensions
(W x H x D): 430 x 138 x 345 mm
(16-15/16" x 5-7/1" x 13-19/32")
Weight: 7,9 kg (17 lb 7 oz) net
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