Vintage McIntosh MR75 // Solid-State Tuner / Professionally Serviced and Aligned

The McIntosh MR75 is the last of the true analog tuners. This example is nearly flawless. The glass is in excellent condition, with only a tiny faint blemish under the headphone jack. We currently have a couple of walnut cabinets that fit this model, please inquire if you are interested.

RESTORATIONS

• Full 30-point service check
• Cleaned tuning capacitor
• Repaired lighting
• Cleaned controls, switches, and chassis

SPECS

Type   Solid state AM/FM stereo tuner

Tuning   88 to 108 MHz

Antenna Inputs   One 300W balanced and one 75W unbalanced.

Intermediate Frequency   10.7 MHz

Usable Sensitivity   2mV (11.2 dBf) IHF

Quieting Sensitivity   5mV (19.1 dBf) IHF -50 dB (Mono) / 50mV (39.5 dBf) IHF -50 dB (Stereo)

Signal To Noise Ratio   70 dB IHF minimum both Mono and Stereo

Harmonic Distortion   0.18% (Mono) IHF maximum / 0.38% (Stereo) IHF maximum

Alternate Channel Selectivity   75 dB IHF minimum

Image Rejection   100 dB IHF minimum

Stereo Separation   45 dB minimum at 1 kHz

Audio Frequency Response   20 Hz to 15 kHz +0, -1 dB

Capture Ratio   1.8 dB

Selectivity   75 dB IHF minimum

Spurious Rejection   100 dB IHF minimum

SCA Rejection   60 dB minimum

AM Sensitivity   75mV IHF with external antenna

AM Signal To Noise Ratio   45 dB minimum IHF or 55 dB at 100% modulation

AM Frequency Response   + 0 -6 dB from 20 Hz to 3500 Hz

AM Harmonic Distortion   0.8% maximum at 30% modulation

AM Adjacent Channel Selectivity   30 dB minimum IHF

AM Image Rejection   65 dB minimum from 550 kHz to 1600 kHz

Audio Output   2.5V into 47kW (Variable) / 1V into 47kW (Fixed)

Audio Hum   75 dB down from 100% modulation

Power Requirement   120 Volts 50/60 Hz, 20 Watts

Semi Conductor Complement   22 Bipolar Transistors, 4 Field Effect Transistors, 23 Silicon Diodes, 15 Integrated Circuits, 19 LEDs, 2 Bridge Rectifiers

Dimensions   16"W x 5.44"H x 14.25"D

Weight   23 lbs.

LINER NOTES

The Mclntosh MR 75 AM-FM Stereo Tuner is a superb tuner using the latest high technology circuits. This fine tuner will discover more FM stations with good quality than ever before. The Automatic Frequency Lock (AFL) is a patented Mclntosh circuit that activates when you tune to the center frequency of an FM station. When the center ON-STATION vertical LED indicator lights, there will be no drift from accurate tuning, insuring minimum distortion and best performance. When listening to weak or distant FM stations, optimum stereo separation and signal to noise ratio is automatically provided by a third generation phase locked loop stereo decoder.