Exactly the same? No, but I had an MX113 and liked it very much--space-saver too!
The specs below are from Roger Russell's website (with links).
MX113: http://www.roger-russell.com/tunpre.htm#mx113
FM SECTION: Sensitivity 2.5uV, Distortion 0.5% in mono, Response 20-20kHz (+1.0 -1.0dB), Capture ratio 1.8dB, Spurious rejection 100dB, Image rejection 80dB,
PREAMPLIFIER SECTION: Response 20-20kHz (+0.5 -0.5dB), Distortion 0.1%, Input sensitivity and impedance: aux 0.25V at 250k, phono 2.0mV at 47k. Voltage gain 20dB aux, 62dB phono. Output: 2.5V (10V max). Hum and noise: aux -85dB, phono 70dB below 10mV input. Tone controls: bass +16dB to -20dB, treble +20 to-20dB. . LF filter 50Hz at 6dB/octave. HF filter 5kHz at 6dB/octave. Phase switch: 0 or 180.
FRONT PANEL: Glass front panel. Illuminated. Input selector: aux, tape, fm, ph 1, ph 2. Dual concentric bass and treble controls. Pushbutton switches: mono/stereo, lf, hf, tape, muting, loud. Balance. Volume with power switch. Tuning control. Illuminated dial. Electron ray tuning indicator. Stereo light. Panloc buttons.
TOP PANEL: Phase switch, Panel lamp intensity, Muting control.
BACK PANEL: Inputs: aux, tape, ph 1, ph 2. Ground terminal. Outputs: main, tape, l+r. Push terminals: gnd, 300 ohm and 75 ohm antenna. Scope outputs: tp 1 and tp 2. AC outlets: 2 switched, 1 unswitched. Fuse. Panloc mounting.
Size: 5-7/16H, 16"W and 13"D. Weight 24 lb. Sold from 1969-1971. Last retail price $549.00
MR74: http://www.roger-russell.com/tuners.htm#mr74
FM SECTION: Sensitivity 2.5uV. Response 20-15kHz (+1 -1dB) stereo. Distortion 0.5% in stereo. Capture ratio 1.5dB. Selectivity: adjacent channel = 6dB normal, 15dB narrow. alternate channel = 68dB normal, 88dB narrow. Image rejection 95dB. S/N 70dB. Separation 35dB@1kHz. Spurious rejection 90dB. SCA rejection 50dB. Stereo filter noise reduction: 10dB position 1, 20dB position 2
AM SECTION: Sensitivity 75uV. Response: Normal -6dB at 3.5kHz, Narrow -6dB at2.1kHz. Distortion 1.0%. Adjacent channel selectivity: normal 35dB, narrow 45dB. S/N 55dB. Image rejection 65dB.
FRONT PANEL: Glass front panel. Mode selector sw: am, fm or fm mono. Stereo filter sw: out, 1 or 2. Selectivity sw: normal or narrow. FM muting sw: out, distant or local. Volume with on-off switch. Tuning ctrl. Signal strength and tuning meters. MPX indicator. Multipath indicator.
BACK PANEL: Audio out 2.5V variable and fixed. Built-in ferrite loopstick. AM ant sw: ext or loop. Ext am antenna. 300 or 75 ohm fm cable input. Scope outputs. Panloc mounting.
Size 5-7/16"H, 16"W and 13"D behind panel. Weight 25 lb. Sold from 1972-1979. Last retail price $849.00