McIntosh MR-78 Stereo Tuner- Modefferi Modified

Description: McIntosh MR-78 Stereo Tuner- Modefferi Modified General:Many believe this to be the best tuner EVER made.In our opinion it's definitely in the top five. New glass makes the front of the unit look even better. We can also supply a perfectly fitting McIntosh wood cabinet for the complete vintage look, just contact us for details/availability.This particular tuner is very special as it has been modified in 2004 by Richard Modefferi himself; the designer/engineer behind the MR78. It has been tested in our lab and it is working well, it will include its original box plus a bezel.The Consumer Electronics Hall of Fame: McIntosh MR 78 Tuner:"A young engineering genius used a computer to design a filter and the result was the greatest FM tuner ever built" That engineering genius was Richard Modafferi, and if you reverse his initials you get the model prefix for a host of McIntosh Tuners...SkyFi Cosmetic Notes:The front panel glass has been replaced with a new production piece from the McIntosh factory. The new glass propagates light slightly differently than the original glass. Some of the colors may appear muted or a bit more dim compared to original glass. Looks great overall.SkyFi Technical Notes:Modified by Richard ModeferriBrand Background:McIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.Ownership:Second OwnerConnections:RCA output, 75ohm antenna output, 300ohm antenna output, AC outletGeneral Sound:Smooth, uncolored, undistorted natural and cleanCosmetic Condition:8/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. Working Condition:Working perfectly and tested in our lab.Included:Unit and boxPacking:Original Manufacturers PackingSpecs:Type: Mono/Stereo TunerTuning Bands: FMTuning Scale: AnalogueFM Tuning Range: 88 to 108 MHzSensitivity: 2.5uV (FM)Signal to Noise Ratio: 75dB (FM)Distortion: 0.2% (FM)Selectivity: 55dB (FM)Frequency response: 20Hz to 18kHz (FM)Output: 2500mVDimensions: 16 x 5.5 x 13 inchesDimensions:16" x 5.5" x 13"Weight:27 lbs.Approximate Age:1972Testing Process:We start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot.On vintage units we often spot check select capacitors for value and ESR. Vintage analog tuners also have moving parts related to the tuning gang and dial string. These parts are inspected for smooth operation.If the unit passes visual inspection it is bench tested for a handful of key performance parameters using a Sencore SG80 AM/FM Stereo Analyzer. The SG80 allows us to “simulate” an ideal radio station using precision test signals instead of music. This device in conjunction with an oscilloscope allows us to properly evaluate the following parameters:1) AM Reception (Where Applicable)2) FM Mono Reception & Tuning Meter Function3) FM MPX Reception (Stereo)4) Dial Tracking: How accurately the tuner dial or display indicates the actual frequency of the broadcast being received.5) Stereo Separation: A properly working stereo tuner will have minimal crosstalk between the left and right channel.6) Sensitivity & Signal Strength Meter Function: By lowering the output of the SG80 we can simulate weak stations and determine how well the tuner will be able to pull in weak distant stations. This adjustment also helps us verify signal strength meter function.If the tuner has acceptable performance related to the parameters above we connect the unit for listening tests with a simple dipole antenna. We listen for audio reproduction quality of local stations and evaluate how many stations the tuner can receive while we sweep through the dial.We are looking to verify that the tuner can decode stereo on strong local broadcasts and pick up a wide variety of local stations at the bottom, middle, and top of the frequency band. At this point we also test convenience features such as muting, filters, built in oscilloscope function, etc.We finish up with an extended listening test on our long term test rig. We tune in to a strong local station and monitor for drift over a minimum period of 2-3 hours. ----------------------------------------------------------------------- *Please note we are not a repair shop and only restore what we own. ---------- SkyFi Audio - Curators of Vintage Audio Gear SkyFi Audio is a small startup business specializing in the purchase, reconditioning, and reselling of high end audio equipment. We only buy equipment that we admire and are passionate about. ---------- PURCHASING GUIDELINES: 1) This item will be professionally packaged and insured for safe transit to your home unless you opt for local pickup from our shop. All local pickup items are only wrapped in industrial strength clear stretch wrap if the original manufacturer packaging is unavailable. Local pickup is available in Glen Rock, NJ, 07452, just a half hour drive from Midtown Manhattan, with convenient parking near our building. If we don’t have the original packaging, we use heavy-duty double-ply corrugated boxes with custom made to your item SealedAir Instapak expanding foam custom inserts. In many cases this has proven to be better than the original packaging! We also use high quality fiber reinforced tape to seal our packages. Lightweight items will be bubble wrapped and shipped in a high-quality box. 2) We will not review or accept any offers that do not go through the official eBay system. We have too many items for sale and it’s nearly impossible to keep track of offers outside of the official system. Please do not message, email, or text any offers. 3) Please ensure your shipping address is correct within eBay as we will ONLY ship to the eBay/PayPal Confirmed Shipping Address. No exceptions. 4) eBay may charge and collect sales tax to your state/jurisdiction which we have no control over. eBay v1.91BH McIntosh MR-78 Stereo Tuner- Modefferi Modified General: Many believe this to be the best tuner EVER made. In our opinion it's definitely in the top five. New glass makes the front of the unit look even better. We can also supply a perfectly fitting McIntosh wood cabinet for the complete vintage look, just contact us for details/availability. This particular tuner is very special as it has been modified in 2004 by Richard Modefferi himself; the designer/engineer behind the MR78. It has been tested in our lab and it is working well, it will include its original box plus a bezel. The Consumer Electronics Hall of Fame: McIntosh MR 78 Tuner: "A young engineering genius uséd a computer to design a filter and the result was the greatest FM tuner ever built" That engineering genius was Richard Modafferi, and if you reverse his initials you get the model prefix for a host of McIntosh Tuners... SkyFi Cosmetic Notes: The front panel glass has been replaced with a new production piece from the McIntosh factory. The new glass propagates light slightly differently than the original glass. Some of the colors may appear muted or a bit more dim compared to original glass. Looks great overall. SkyFi Technical Notes: Modified by Richard Modeferri Brand Background: McIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products. Ownership: Second Owner Connections: RCA output, 75ohm antenna output, 300ohm antenna output, AC outlet General Sound: Smooth, uncolored, undistorted natural and clean Cosmetic Condition: 8/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. Working Condition: Working perfectly and tested in our lab. Included: Unit and box Packing: Original Manufacturers Packing Specs: Type: Mono/Stereo Tuner Tuning Bands: FM Tuning Scale: Analogue FM Tuning Range: 88 to 108 MHz Sensitivity: 2.5uV (FM) Signal to Noise Ratio: 75dB (FM) Distortion: 0.2% (FM) Selectivity: 55dB (FM) Frequency response: 20Hz to 18kHz (FM) Output: 2500mV Dimensions: 16 x 5.5 x 13 inches Dimensions: 16" x 5.5" x 13" Weight: 27 lbs. Approximate Age: 1972 Testing Process: We start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR. Vintage analog tuners also have moving parts related to the tuning gang and dial string. These parts are inspected for smooth operation. If the unit passes visual inspection it is bench tested for a handful of key performance parameters using a Sencore SG80 AM/FM Stereo Analyzer. The SG80 allows us to “simulate” an ideal radio station using precision test signals instead of music. This device in conjunction with an oscilloscope allows us to properly evaluate the following parameters: 1) AM Reception (Where Applicable) 2) FM Mono Reception & Tuning Meter Function 3) FM MPX Reception (Stereo) 4) Dial Tracking: How accurately the tuner dial or display indicates the actual frequency of the broadcast being received. 5) Stereo Separation: A properly working stereo tuner will have minimal crosstalk between the left and right channel. 6) Sensitivity & Signal Strength Meter Function: By lowering the output of the SG80 we can simulate weak stations and determine how well the tuner will be able to pull in weak distant stations. This adjustment also helps us verify signal strength meter function. If the tuner has acceptable performance related to the parameters above we connect the unit for listening tests with a simple dipole antenna. We listen for audio reproduction quality of local stations and evaluate how many stations the tuner can receive while we sweep through the dial. We are looking to verify that the tuner can decode stereo on strong local broadcasts and pick up a wide variety of local stations at the bottom, middle, and top of the frequency band. At this point we also test convenience features such as muting, filters, built in oscilloscope function, etc. We finish up with an extended listening test on our long term test rig. We tune in to a strong local station and monitor for drift over a minimum period of 2-3 hours. ----------------------------------------------------------------------- *Please note we are not a repair shop and only restore what we own. ---------- SkyFi Audio - Curators of Vintage Audio Gear SkyFi Audio is a small startup business specializing in the purchase, reconditioning, and reselling of high end audio equipment. We only buy equipment that we admire and are passionate about. ---------- PURCHASING GUIDELINES: 1) This item will be professionally packaged and insured for safe transit to your home unless you opt for local pickup from our shop. All local pickup items are only wrapped in industrial strength clear stretch wrap if the original manufacturer packaging is unavailable. Local pickup is available in Glen Rock, NJ, 07452, just a half hour drive from Midtown Manhattan, with convenient parking near our building. If we don’t have the original packaging, we use heavy-duty double-ply corrugated boxes with custom made to your item SealedAir Instapak expanding foam custom inserts. In many cases this has proven to be better than the original packaging! We also use high quality fiber reinforced tape to seal our packages. Lightweight items will be bubble wrapped and shipped in a high-quality box. 2) We will not review or accept any offers that do not go through the official eBay system. We have too many items for sale and it’s nearly impossible to keep track of offers outside of the official system. Please do not message, email, or text any offers. 3) Please ensure your shipping address is correct within eBay as we will ONLY ship to the eBay/PayPal Confirmed Shipping Address. No exceptions. 4) eBay may charge and collect sales tax to your state/jurisdiction which we have no control over. eBay v1.91BH × × × × × × × × × × × × × × Buy now and save! Tell a friend Visit store Watch now Postage info UPS Ground - $0.00 Local Pickup - $0.00 Click the Postage tab above the listing description for more info Additional delivery notes PICK UP OPTION Our items are available for pick-up. Pick up procedure is as follows: Purchase the item through eBay Email us to coordinate pickup PAYING VIA PAYPAL We accept PayPal on our all our items so you can shop with confidence. Simple choose the PayPal option when proceeding through the checkout. Additional Information No additional information at this time Ask seller a question You might also like Dynavector 10x3 High-Output MC Phono Cartridge Music Reference RM-5 MK II Tube Preamplifier with Phono WyWires Silver Series Phono Interconnects - 5 Pin DIN w/ XLR Connectors - 4ft Music Reference RM-9 Tube Amplifier With EL34's Contact To contact our Customer Service Team, simply click the button here and our Customer Service team will be happy to assist. Ask seller a question © SkyFi Audio Postage Click the Postage tab above the listing description for more info Payment Accepted Payment Methods PayPal Returns Returns are not accepted Seller will pay for return shipping. eBay integration by

Price: 5340 USD

Location: Glen Rock, New Jersey

End Time: 2025-01-12T22:35:28.000Z

Shipping Cost: 0 USD