Pioneer - TX-9800 Tuner





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Holds dual bachelor's degrees in electronics and physics with 20 years in audio engineering.
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Description from the seller
Tuner Pioneer TX 9800, top-of-the-line in the Blue series (Fluoroscan), designed to be paired mainly with the Pioneer SA-9800 (top-of-the-line amplifier in the series).
The two-stage RF amplifier TX-9800 input stage incorporates a five-position variable capacitor and three double-gate MOSFETs.
A capacitance-controlled double-tuned circuit is inserted between the stages of the RF amplifier. These features deliver exceptional performance, such as an IHF sensitivity of 8.8 dBf, a spur-free response better than 110 dB, and an image rejection ratio above 120 dB.
It has Quartz Sampling Lock tuning and excellent reception performance. It is equipped with narrow/wide bandwidth filters, low distortion (0.04% in mono), high selectivity (85 dB FM), and an exclusive touch-sensitive tuning knob with lock.
All of these characteristics make it a High‑End Tuner
In excellent cosmetic condition, electronically perfect.
I have licensure to ship to Germany
Specifications:
Key Technical Specifications (FM Section)
• Sensitivity: 1.5 µV (IHF)
• 50 dB Quieting Sensitivity: 13.2 dBf (mono), 36.1 dBf (stereo)
• Signal to Noise Ratio: 83 dB (mono), 80 dB (stereo)
• Distortion (THD) at 1 kHz: 0.04% (mono), 0.07% (stereo, wide)
• Selectivity: 30 dB (wide), 85 dB (narrow)
• Frequency Response: 20 Hz to 15 kHz (+0.2 dB, -0.5 dB)
• Stereo Separation: 55 dB (1 kHz), 40 dB (20 Hz - 10 kHz)
Key Features and Design
• Tuning System: Quartz Sampling Lock and automatic touch-sensor tuning
• Filters: Selectable Wide/Narrow FM bandwidth
• Display: Twin meters (signal strength and center of channel)
• Outputs: Fixed and Variable outputs
General Specifications
• Dimensions: 453 x 155 x 390 mm
• Weight: 9.3 kg (20.5 lbs)
• Power Consumption: 28 W
Components & Build
• Semiconductors: 11 x ICs, 11 x FETs, 30 x Transistors, 48 x Diodes
• Era: Late 1970s "golden era" Pioneer silver face
Tuner Pioneer TX 9800, top-of-the-line in the Blue series (Fluoroscan), designed to be paired mainly with the Pioneer SA-9800 (top-of-the-line amplifier in the series).
The two-stage RF amplifier TX-9800 input stage incorporates a five-position variable capacitor and three double-gate MOSFETs.
A capacitance-controlled double-tuned circuit is inserted between the stages of the RF amplifier. These features deliver exceptional performance, such as an IHF sensitivity of 8.8 dBf, a spur-free response better than 110 dB, and an image rejection ratio above 120 dB.
It has Quartz Sampling Lock tuning and excellent reception performance. It is equipped with narrow/wide bandwidth filters, low distortion (0.04% in mono), high selectivity (85 dB FM), and an exclusive touch-sensitive tuning knob with lock.
All of these characteristics make it a High‑End Tuner
In excellent cosmetic condition, electronically perfect.
I have licensure to ship to Germany
Specifications:
Key Technical Specifications (FM Section)
• Sensitivity: 1.5 µV (IHF)
• 50 dB Quieting Sensitivity: 13.2 dBf (mono), 36.1 dBf (stereo)
• Signal to Noise Ratio: 83 dB (mono), 80 dB (stereo)
• Distortion (THD) at 1 kHz: 0.04% (mono), 0.07% (stereo, wide)
• Selectivity: 30 dB (wide), 85 dB (narrow)
• Frequency Response: 20 Hz to 15 kHz (+0.2 dB, -0.5 dB)
• Stereo Separation: 55 dB (1 kHz), 40 dB (20 Hz - 10 kHz)
Key Features and Design
• Tuning System: Quartz Sampling Lock and automatic touch-sensor tuning
• Filters: Selectable Wide/Narrow FM bandwidth
• Display: Twin meters (signal strength and center of channel)
• Outputs: Fixed and Variable outputs
General Specifications
• Dimensions: 453 x 155 x 390 mm
• Weight: 9.3 kg (20.5 lbs)
• Power Consumption: 28 W
Components & Build
• Semiconductors: 11 x ICs, 11 x FETs, 30 x Transistors, 48 x Diodes
• Era: Late 1970s "golden era" Pioneer silver face
