Beschreibung
Onkyo Integra T-4150 AM/FM Digital Tuner Onkyo Integra T-4150 AM/FM Digital Tuner General: This tuner recently came into the shop and at first glance we werent sure what to expect. It seemed like a rather basic 1980s tuner with the display powered off, but then we turned it on and were pleasantly surprised... The front display is super bright and useful. All of the controls were tested and working, and it was able to pull in any FM station we tried with ease and musicality. I kept this running on our test bench for a few days just to enjoy it. SkyFi Cosmetic Notes: This was likely moved around and uséd in several different systems as the top and front panel have scratches as shown in our photos. The front display has a scratch across part of the display that is not visible when in use or even a foot or two back. Mostly visible if youre starting at it closely and at an angle, and it does not obscure any of the display or controls. Were super conservative in our ratings and have given this a 6/10 as a result: 6/10 = Fair. Electronics may show one major scratch thats deep enough to show metal, or a slight dent on one of the surfaces. The piece will not have any major scratches on the front faceplate, but may have some nicks along the top front edge. Chrome and glass may show obvious pitting, but should not have any flakes. Transformer covers may have scratches. Silk-screening is separating from the glass in more than one area, and some lettering is worn off, but the glass itself is intact. Approximate Year: 1987 MSRP: $325 ($615+ in 2023 when adjusted for inflation) Specifications: Tuning Bands:FM, AMTuning Scale:DigitalFM Tuning Range:87.9 MHz to 107.9 MHzAW Tuning Range:530 to 1620 kHzSensitivity:0.9uV (FM), 25uV (AW)Signal to Noise Ratio:73dB (FM), 40dB (AW)Distortion:0.2% (FM), 0.8% (AW)Selectivity:60dB (AM)Frequency response:30Hz to 15kHz (FM)Output:600mV (FM), 150mV (AW)Dimensions:17.13 x 2.83 x 14.49(435 x 72 x 368mm)Weight:8.16 lbs(3.7kg) The SkyFi Testing Process for Tuners: 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 a strong local station and monitor for drift over a 2-3 hour period. Item Included Original Box Not Included Manual Not Included (Online) Remote Not Applicable Cables Yes - Power Only Physical Condition 6 / 10 Working Condition 10 / 10 *Scroll down to view additional images for this listing and click to enlarge. **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. No mid-fi, no gimmicks, no junk. Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the HiFi world. If it does not meet or exceed the original manufactures specifications, it will not be sold. We are very selective about the equipment we purchase, focusing on mostly analog, high-build quality, American, and European built units. Please note we are not a repair shop and only restore what we own. Through our sister company, which is an authorized dealer for McIntosh, Audio Research, Sonus Faber, ClearAudio, Project, and Sony ES, we have access to OEM parts, service, and support. ---------- 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) All listings are eligible for the eBay Global Shipping Program unless the item exceeds the maximum weight/price requirements to your country. If this is the case simply message us via eBay. We only accept bank wire transfers for international payments and frequently ship worldwide via UPS. 4) Please ensure your shipping address is correct within eBay as we will ONLY ship to the eBay/PayPal Confirmed Shipping Address. No exceptions. 5) eBay may charge and collect sales tax to your state/jurisdiction which we have no control over. eBay v1.7 × × × × × × × × × × × × × × Buy now and save! 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