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Home > McIntosh > MR55A
McIntosh MR55A
AM/FM Mono tube tuner Original List Price: 276.00

Grade: C2 C2: 699.00
Physical: Some scratches or nicks, light oxidation - Good Condition
Electrical: Meets original specs, noisy worn controls
Comments:Alignment slightly off.

Grade: C? C?: 499.00
Physical: Some scratches or nicks, light oxidation - Good Condition
Electrical: Not graded AS IS
Comments:with Multiplex adaptor hard wired

Front Panel: Anodized gold and black aluminum panel. Illuminated dial. FM light. AM light. Signal strength indicator: 0 to 5. Tuning indicator: - to +. MC light. KC light. Tuning control. FM AFC control: min to max or off. AM sensitivity switch: greatest, intermediate or minimum. Volume control with on-off switch. Selector switch: FM listen, FM tune, AM broad, AM medium, AM sharp or phono.

Back Panel: Screw terminals for FM antenna and to TV set. Ground screw. Power cord. Fuse. Unswitched AC outlet. Panel lamps switch: high or low. AM antenna switch: antenna or loop. Screw terminals for AM antenna connections: hi, lo and ground. 2 audio outputs. Multiplex output. Phono input.

FM Section: Sensitivity 3uV. Response 20Hz-20kHz within 3dB. Distortion less than 3%. Capture ratio 1 to 0.8. Four IF stages. Two limiters.

AM Section: Sensitivity 1.5uV. Selectivity bandwidth 20Hz-9kHz, 20Hz-6.5kHz and 20Hz-2kHz. Whistle filter 70dB reject at 10kHz.

Tubes: 6BK7, (2)6AB4, (2)6BA6, (4)6AU6, 6AL5, (2)6BN8, 6U8, 12AU7, 6BE6, 6BW4.

Production: 1,696 units made from June 1959 to August 1962. SN: 3K001 to 4K697

Shipping weight: 35 lbs.

Related Categories:   Modafferi Modifications    Antennas

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