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

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

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



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

Feedback: my old MR55 works beautifully. Thank you to you and Steve and the entire Audio Classics team. I love the MR55; it's better and more beautiful even than you described when you sold it to me. B.B., NY

Convenient payment plans: Audio Classics, Ltd. accepts Mastercard, VISA, Discover and American Express. For Your protection, we thoroughly investigate the validity of all credit card charges. To avoid delays, we prefer to send credit card orders to Your billing address only. You can pay by personal check, postal money order, certified check or bank cashier's check. Personal checks are subject to credit verification and can delay orders up to two weeks. COD orders must be paid by cash, bank check or money order and require a 10% deposit. The deposit can be paid by check or credit card.
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