Pioneer TX-700 tuner

Solid State AM/FM Stereo Tuner with FM Preset Tuning Convenience.

The TX-700 has new FET FM circuitry that gives it improved sensitivity and selectivity am reception is also excellent. With the station presetting feature, up to 5 FM stations will pop in individually at the touch of a button, and manual tuning is convenient, too. The TX-700 also includes a very accurate time-switching type demodulator in the FM multiplex section that provides wide frequency response and natural stereo separation. A full complement of controls and connections make the TX-700 very versatile. It's tuner that is just as much a pleasure to operate as it is to hear.

Features:

New FM Circuitry

FET in the front end of the TX-700 and variable capacitance diodes in the entirely new tuning circuit provide much better sensitivity and selectivity, tuning is easier even in areas of station-crowding.

FM Preset Tuning

With the manual tuning knob OFF, you can preset up to 5 FM stations by means of the individual tuning meters and dial scales. After once presetting, tuning in is quickly accomplished by a simple touch of a push-button.

FM IF Section

The TX-700 incorporates integrated circuits in the FM intermediate frequency section - limiting and capture ratio are much better than in conventional FM stages.

Manual Tuning

With the manual tuning knob ON, AM or FM stations can be tuned very accurately by dialing. For manual tuning, the tuning needle lights up on the dial scale.

FM Multiplex Section

A highly accurate time-switching type demodulator in the multiplex section provides excellent separation and frequency response. The TX-700 also has an FM MPX noise filter to keep noise out of FM stereo reception, a muting switch on the front panel to eliminate interstation noise, and FM mono-stereo automatic selection.

Am Tuner section

The TX-700 has a ferrite loopstick antenna on the rear panel plus connections for a long-wire antenna for improved AM reception.

Output Level Control

In addition to tape recording output terminals, there is an output level control permitting perfect compatibility with other amplifiers.

Styling

The appearance of the TX-700 is clearly, attractively, contemporary. The TX-700 blends particularly well with pre- and main amplifiers Pioneer Model S.C.-700 and SM-700

Specifications

FM Section

Circuitry:

Preset Tuning and Manual Tuning, mechanism employing Varacator (Variable Capacitance Diode)

RF-Amplifier circuit with an FET

Frequency Range:  87,5 to 108 MHz

IHF Sensitivity:  2,2 µV ( at 98 MHz)

Capture Ratio:  1,8 dB (at 98 MHz)

Selectivity:  35 dB (at 98 MHz)

Image Rejection:  60 dB (at 98 MHz)

Signal-to-Noise Ratio:  better than 52 dB

Antenna Input:  300 Ω  Balanced

FM MPX Section

Circuitry:  Time-switching type demodulator FM mono-stereo automatic selection

Channel Separation:  42 dB (at 1,000 Hz)

AM Tuner Section

Circuitry:  Superheterodyne

Frequency Range:  525 to 1605 kha

IHF Sensitivity:  10 µV

Image Rejection 40 dB (at 1,000,000 Hz)

Antenna Input:  Built-in ferrite loopstick antenna

General

Power Supply:  110, 120, 130, 220 and 240 V (switchable) 50/60 Hz

Power Consumption:  11 V A

Dimensions (W x H x D):   370 x 118 x 337 mm (10-9/16" x 4-5/8" x 13-1/4")

Weight:  5,6 kg (12 lb 5 oz) net