Number of Transistors
Semiconductors present.
Semiconductors
Main principle
PLL, Phase-locked loop
Wave bands
Broadcast (BC) and FM or UHF.
Details
Hi-Fi equipment
Power type and voltage
Alternating Current supply (AC) / 120 Volt
Loudspeaker
– For headphones or amp.
Material
Wooden case
from Radiomuseum.org
Model: AM-FM Tuner MR 7083 – McIntosh Audio Company;
Shape
Book-shelf unit.
Dimensions (WHD)
16.13 x 5.44 x 13 inch / 410 x 138 x 330 mm
Notes
McIntosh MR 7083 AM-FM tuner.
FM SECTION: Sensitivity 11.25dBF or 1uV across 75 ohms. Stereo 50dB quieting sensitivity 37dBF or 20uV across 75 ohms. Response 20-15kHz (+0 -1dB). Distortion 0.12% in stereo. Capture ratio 1.5dB. Image rejection 80dB. S/N 75dB stereo. Alt channel selectivity 70dB. Separation 50dB@1kHz. Spurious rejection 100dB.
AM SECTION: Sensitivity 20uV. Response 50-6kHz NRSC. Distortion 0.5%. Adjacent channel selectivity 45dB. S/N 60dB. Image rejection 65dB.
FRONT PANEL: Glass panel top. Black anodized bottom. Front panel width was 16-1/8″ in early units and 17-1/2″ in later units. Push Buttons: AM, FM, Spatial, Power, Mono, Stereo, 8 presets, Search, Scan up, Scan down, Enter. Tuning ctrl. LED indicators: tuning and signal. Digital frequency readout.
BACK PANEL: Audio out 1.2V (rear ctrl), 1.2V fixed. Built-in ferrite loopstick. 15 pin remote control receptacle. Ext am antenna. 75 ohm fm cable input. Scope outputs. Panloc mounting.
Net weight (2.2 lb = 1 kg)
25 lb 5 oz (25.313 lb) / 11.492 kg
