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McIntosh C 28 Stereo Pre Amplifier – MINT CONDITION

This is mint condition McIntosh C28 Stereo PreAmplifier. It includes the original slant leg cabinet case, and I can assure you the unit was removed for the very first time to take the pictures enclosed. The unit belonged to my grandpa and it was in a special glass cabinet, protected from dust and moisture, since the 1970's. It works great as new and it is perfect cosmetic condition with owners manual and service information booklet. The unit is in perfect working condition, and I can tell it in is far better condition than any unit in e-bay. YOU GET ALL THE ORIGINAL COMPONENTS, THE PRE-AMPLIFIER, THE WOOD CABINET CASE, AND ALL THE MANUALS. C 28 Stereo PreamplifierELECTRICAL: Response 20-20kHz (+0 -0.5dB). Distortion 0.1%. Noise and hum -90dB aux, -78dB phono. Output rated 2.5V. Output impedance 100 ohms. Load impedance 47k. Input sensitivity & impedance: aux 0.25V at 250k, 2mV at 47k, mic 2.5mV at 500k. Tone controls: bass +20dB to -20dB, treble +18 to-18dB. Center channel output 1.25V. Headphone amplifier 0.75V at 8 ohms. LF filter 50Hz at 12dB/octave. HF filter 7kHz at 12dB/octave. Bass trim controls boost up to 6dB below 100Hz. Voltage gain 20dB aux, 62dB phono.FRONT PANEL: Glass panel. Illuminated. Balance, Comp: pres, flat loud. Input selector with indicator lights: aux, tuner, phono 1, and phono 2, mic, tape hd. Mode selector with indicator lights: L to L+R, R to L+R, stereo rev, stereo, mono (L+R), L+R to L and L+R to R. Volume with power switch. Separate treble and bass controls each channel. Pushbutton switches with indicator lights: tape 1 and tape 2, tape copy: 1 to 2 or 2 to 1, Filters: LF, HF. Speaker off: main, remote. Headphone jack, Tape input jack, Tape output jack.TOP PANEL: Bass trim, Headphone level, output level, phono 1 and phono 2 level controls, center channel level, power amp switch: on or off.BACK PANEL: Speaker remote control socket. Inputs: aux, tuner, tape 1, tape 2, tape head, mic, phono 1 and phono 2. Outputs: center, main (2 pair), tape 1 and tape 2, line. Ground binding post. AC outlets: 4 switched at front panel, 2 switched at top panel, 1 unswitched. Fuse, Panloc mounting.

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Sansui AU 717 compl. restored all new caps, diodes, transistors too

First off, I do this as a hobby, not for a living. I spend a lot of hours refurbishing one of these marvelous amps. It's a source of enjoyment and pride for me, so each amp is my best work, NOT my fastest 'gotta earn a living' work, as others may need to do. I am known as Scottrt on AudioKarma's 'Exclusively Sansui' forum. I do these detailed restorations on classic Sansui components of all types, and every now and then I enjoy to restore one for public sale (vs private commissions). Feel free to contact me if you have an amp of your own that you would like to see this type of work done. This AU-717 has been completely dis-assembled and thoroughly cleaned... frame/transformers/chassis/cct. boards/case cover/face and knobs...complete, inside and out. Then I completely restored its' electronics. Please bear in mind that most of these parts are replaced to reset the clock on sound quality and reliability. If you own or consider purchasing a nice used UN-restored 30 year old Sansui amp, it WILL need refurbishing very soon, or maybe already has problems mentioned in the listing. My restorations are truly complete. ALL electrolytic capacitors, standard diodes, zener diodes, silicon ball diodes, fuse resistors, many regular resistors, nearly all the small, medium and large transistors, trimmer pots, and finally any other component affected by the Sansui glue have been replaced. The four main filter caps are the originals, in excellent condition. I also renewed and up-rated the 4 power supply output transistors and driver pre-transistors with much higher rated Fairchild transistors. I replace many transistors with modern audio high quality higher voltage/power and lower distortion equivalents to ensure best reliability AND improve sound quality and detail. NO other 'restored' units on ebay are done at this extreme level. Only top of the line have been used: Nichicon PW and FG Fine Gold Muse electrolytic caps, Fairchild diodes and transistors, Bourns ceramic trim pots, etc. These parts cost two or three times as much as good quality 'general purpose' parts that other Sellers use. The original Sanken 2SA747 and 2SC1116 output transistors are intact and tested great. This amp has great cosmetics inside and out, 8.5 - 9 out of 10. The knobs have no cosmetic flaws, and the face is near perfect... their are a few small nick on the upper edge that I have touched-up. The original case cover is also very nice... no dents or dings and only a few various light scratches, but it presents nicely. (See detailed shots of this unit at link below). This is really as nice looking unit. All the controls (pots and switches) have of course been cleaned with DeOxit D5 and preserved with De-Oxit G5. Input jacks have been thoroughly cleaned. The amp was 'dialed in', then run pretty hard into load resistors for over 40 hours. Then I give it good listen, having given it enough time for the new caps to 'form'. This amp sounds really great... Powerful and detailed and just warm enough you can listen all day. This amp sounds much more robust and is more powerful than an un-restored one. The DC offset is zeroed out and Bias set at 20mv as per Sansui specs. Please see 54 hi-res pics hosted at photobucket using this link: Detailed restoration pics I will Include a CD with Hi-res pics of the restoration, along with a copy of my worksheets detailing the specifics of all the components replaced. I also include a copy of the receipts for all the components. The last four AU-717's I restored and listed on ebay each sold within 36 hours. Besides the kind ebay feedback, I also receive feedback from buyers via email, such as: "Scott, Au717 arrived promptly at 9am Saturday morning. IMPRESSED!!! such attention to detail, from workmanship to documentation. Only a true audio lover and craftsman could produce such results. Amp is tight and like being united with and old friend all the original and familiar qualities are shining through. SOUNDS GREAT!!! Thank you so much. I also have a pioneer RT909 Reel to Reel that's in need of some repair. Let me know if this is something you do. Again thanks you are AWESOME. Abe I." ______________________ "Hi You don't know me but my name is Bill and I have an AU-919 you restored. I bought it on ebay last week and have been playing it for the last few days. I just wanted to drop you a note to tell you how happy I am to have been able to get your unit. The seller included pictures you took during the rebuild and on their merit, I decided this was a must have. I was not wrong. It is "fast and detailed." I don't know how you learn the skills it took do do this but I'm very please you have. Anyway, I tip my hat to you. Regards/Bill" _______________________ Hey Scott Well, I couldn't resist your restored AU-717 listed on eBay. I'm the person in TN that has your restored AU-919. It gets played daily and I still am just totally delighted with it. I have had a AU-717 for some time before I got the 919. It has had it's caps replaced and it is very nice but I will sell it now to make way for yours. I really trust your work and the fact you replaced many of the other components along with the caps. Your unit will go up to my office. Please be sure to insure the package and send me the tracking number so I can be home when it's delivered. Thanks in advance for your efforts to get the 717 packaged and in the mail. Regards Bill B.________________________ Scott, The AU-717 arrived safely today. Thank you for all your effort on this amplifier, I appreciate it. I had some time to listen to it and the only way I can describe the sound is... Wow! It sounds great and just as you described, it is dynamic and detailed. I have an old 717 that was not used much but never had anything replaced in it. I listened to the original then to yours - your 717 sounds fantastic. This has been the best audio purchase I have made. Thank you, Joe K. _______________________________ "Hi, Scott. Just a quick note to let you know that the Au-717 just arrived. Haven't fired it up yet, but she looks great! No sign of damage and like-new cosmetics. Thanks also for the parts list, etc. I'll give you a slightly fuller report when I've had a chance to listen a little. It's Christmas in June........ Finally got a chance to hook up the "new" amp. Sounds wonderful. Great job of restoration! Thanks. Tom" I will guarantee the amp for 30 days, but not if I deem you hurt it by shorting out your speaker wires or some other bad move. For those who are interested, here is a list of just what I replaced in this amp: Power supply board: -25 EL caps, 22 diodes, 4 zeners, 14 resistors, 7 protection circuit transistors and brand new protection relay. Also 4 new Fairchild power supply regulator transistors. This is EVERY diode, EL capacitor and most transistors .........77 components! Phono/EQ board: -12 caps, 4 silicon diodes, 4 fuse resistors, 12 transistors Tone Control amp: -18 caps, 2 silicon diodes, 4 fuse resistors, 8 transistors Driver Boards: -10 caps, 6 diodes, 4 zeners, 6 trimmer pots, 4 fuse resistors,8 small transistors, 8 large transistors, and 4 new Fairchild pre-driver transistors. The big caps were uprated from 470uf to 1000uf. ......50 components! That's over 200 new components, all higher quality than the 33 year old originals. I have nearly $400 invested in the original amp purchase, electrical components and parts, and supplies. You can only imagine what additional it would cost to pay somebody for labor (nearly 30 hours the way I fuss) on top of that. My BIN price is a great deal if a genuinely 'like new' AU-717 is what you seek. This item will be carefully packaged in a brand new HD electronics rated box! It means as much to me as it does to you. I will be shipping Fedex, but the UPS shipping calculator amount should be close enough, so please consider it valid. I will ship promptly and provide tracking numbers. Insurance IS included in the shipping cost. I WILL NOT SHIP OUTSIDE THE 50 States US!!!! Sorry

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MCINTOSH MC2505 AMPLIFIER 1 OWNER NICE MC 2505

You are buying a Mcintosh MC2505 power amplifier, Works perfect, Has been cleaned and tested, all lamps Replaced, all controls have been cleaned with Deoxit, Super nice wood case, Has a bubble around headphone jack that is typical with a 2505, Was a 1 owner, it will come with original manual and Schematic, Any questions feel free to ask. It will be properly packed and double box and shipped fully insured to the buyer upon receipt of payment. SPECS: McIntosh MC-2505 stereo power amplifer, rated at 50 Watts per Channel. Solid state design features output auto formers and those big blue meters. ELECTRICAL: 50w/ch. Response 20-20kHz (+0 -0.25dB). Distortion 0.25%. Noise and hum -90dB. Output impedance 4, 8 and 16 ohms. Damping factor 10. Input impedance 200k. Input sensitivity 0.5v. Headphone impedance 4 to 600 ohms. Sentry Monitor. FRONT PANEL: Glass panel. Illuminated. Power level meters (meters read 0 at 50w). Gain controls. Meter range sw: off, -20, -10 and 0. Speaker sw: on or off. Power sw: on or off. Headphone jack. BACK PANEL: Output barrier strips. Audio inputs. AC outlet. Circuit breaker. Panlock mounting. Dimensions: 16"W x 13.5"D x 5.5"H. Weight: 38 lbs.

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Altec 617 8-A pair of speakers

You are buying a pair of Altec 617 8-A speakers. These Altec's are in excellant condition have been tested and sound great. If you have a any question's please feel free to call or e-mail us. These altec's will be shipped properly packed and fully Insured upon, prompt receipt of payment. Thanks for looking!

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H H Scott LK-72 40 WPC 7591 Integrated Stereo Tube Amplifier Preamp Works NICE

From the halcyon days of American HiFi -- the true golden era -- around 1963 -- this was one of HH Scott's really cool 7591 integrated amp designs -- and a true gem. In addition to that.... it's got one of the MOST comprehensive preamp front ends of the day. I am sure from the video, you'll hear that it's very detailed and well balanced. Even extreme adjustments of bass & treble fail to make this amp/preamp sound out-of- control. In fact -- I would say it's allot more "in contol" than you'd year many other great(s) using 6L6 or 6V6 amp from an earlier time. And, by the way -- this comprehensive preamp sections includes rarities NOT FOUND on many fancier & newer, high end tube pre's -- LIKE: Phase Reversal (very cool), and seperate BASS / TREBLE for each channel. It even has a center channel output with BLEND. We also like that is not one of the larger sterile ULTRA-LINEAR circuits (if I am not mistaken). Nice refined pentodes, I always like better -- lots of life and lively notes! Scott products/kits were neatly designed, wellt thought out and used higher quality parts than many other manufacturers of the day. The precision aluminum chassis and in-house wound transformers really set HH Scott apart from other -- trendier competitors. There is a reason why the McIntosh 225 sounds amazingly good thanks also to the 7591 tube (well good iron too). In fact, Walt wrote many years ago in Absolute Sound that the 225 "bests" the 240 & others easily (in quality, not power), and was the only MC amp he ever really recommended. It was a much later design of beam pentode tube. I feel if the 7591 tube were a "car" it would be much like the early late50s/60's Studebaker Golden Hawk ... a powerful V8 package in a classy, good looking suit. A non-overbearing, conservatively fin-tailed CLASS ACT, ready to take charge with clarity....with the look & sound you'll never really get tired of. The 7591 was born of the designers' want to have a really great fidelity ... and punchy power in a small 6V6 styled package. Most experienced audiophiles love it's progenitor -- the 6V6 of which there are many wonderful amps ... enter the 7591 which gives you even more bass control. Luckily it doesn't really conceal any of the 6V6's smokin' midrange. As a result, you get tight bass, and killer detail. And it's just an overall balanced, perfect sound it it's class of tube. As beam power tubes rode off into the sunset, they got smaller, higher power and HARSHER. Not the 7591 -- it's just right. The only real drawback to this tube is -- well --- it's pricey and getting rare. And, there are no relevant subs; at least none you'd want to bother with! That's OK, because the vintage 1960's SYLVANIAs in this Scott LK-72 were tested .... and PLATE CURRENT MATCHED. They're scoring over 100% (see exhibit B,C) on a dynamic emissions test (shown for easy reference) You'll be good on tubes for a long time. Exhibit B,C: tubes included: (4) tested, matched Scott branded 7591, (4) matched RCA 12AX7A / 7025 and a NEW JJ 5AR4, (just installed). This amp appears to be working amazingly well (as of now) -- click video below to give it a listen . This nice unit sounded so good, I wanted to listen to it ALL NIGHT! This amp is about 50 years old. So -- an eye needs to kept out, ready to care & service it when needed. As with all old amps & preamps, EXPECT to encounter ccasional dirty switches and connectors will/should disappear with regular use) . This LK-72 is mostly all original. The coupling caps and the rectifier appear to have been recently serviced. It's been well cared for and. And, seems to be ready for use -- with that watchful eye towards aging caps -- as always. This is a beautiful looking, well cared for original survivor. Cosmetically, it has only a few tiny flaws -- please study all photos below (exhibit F)-- shows a tiny nick on upper edge -- (exhibit H) shows the very nice rear / top chassis (painted rear tube letters are faint / some wear). (exhbit K) -- -shows the CLEAN, very original assembly, nice parts and some recent preventative maintainence (recent PP coupling caps and new diode). You won't see one this nice around for a while -- so seriously consider buying it now -- it may sell very quickly. Will be carefully double-boxed, in tri-wall cardboard with lots of cushion -- best, safest packing on eBay or anywhere else. FAST OVERSEAS or DOMESTIC SHIPPING after payment. All happy customers, please see 100% feedback on all vintage audio items. Source in this case is 16bit CD player, and be sure to watch the SCOTT LT-110B tuner video -- it's soul mate from 1961-63, feeding Yamaha NS-10 type monitors. go to hifitown.com for more videos. ALL Copyright 2012 OVERSEAS OK, via USPS EMS Express Mail (or for Canada & select countries, Intl. USPS Priority) -- 35lbs PACKED

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Massive Collection of Heathkit Pro Series Incl AA1800 amps, AP1800 preamp, more

papermaker Store I had to take this item down and relist it because I made a few errors in the original listing last night. All corrected now, sorry for any inconvenience or confusion. Huge Collection of the very popular and high quality Heathkit Pro Series equipment. I collected this equipment over the course of several years in the late 1990s, but I am moving and do not really use it any more. I am offering it a low starting bid to get it all sold in one batch. If it does not sell like this I will split it up and get more for it, but would rather get it done easy. Here is the list: Quantity: Model: Description: 1 AD1703 Octave Equalizer 2 AD1706 Active Audio Processor 3 AJ1600 Digital Tuner 1 AD1701 Graphic Output Indicator 2 AD2530 CD Player 4 AA1800 Amp 1 AA1600 Amp 4 AS1348 Speakers 4 AE1705 Equipment Rack 4 AP1800 Preamplifier 3 Accutrac Turntables 1 AC2540 Cassette Deck 1 AD1702 Electronic Crossover AA1800 amps routinely bring $500 each on eBay. The AS1348 speakers and the AE1705 racks are hard to find. All in all anyone that knows this equipment will know the starting price is cheap, cheap, cheap. Condition: I have not run any of this equipment for 10 years. It could all use a cleaning. Most of it works fine, I am sure some of it might need a bit of work. As you can see in the photos one of the speakers has major scratches, I have never tried to touch them up or anything. I also have some items that are included but not pictured, including manuals, some spare speaker components (a nearly full set of drivers for an AS1348). The covers on all three of the Accutrac turntables are damaged, one is not too bad but the other two are bad. Notice that there is one very hard to find Accutrac remote control unit with handheld remote, allowing you to select tracks on a turntable! This item is for local pickup only, of course this would not make sense to ship. All items have to be picked up within two weeks of the end of the auction.

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2x Telefunken ECC803s NOS Never Used

Telefunken ECC803S (Spanngitter) is the best and most wanted ECC83 / 12AX7 ever made. Special frame grid construction, low noise, low microphonics, long life (>10.000 hours), Gold pins, internally balanced with dual support getter and diamond <> logo at bottom. Typical characteristics: Va=250V, Ia=1.2mA, Vg=-2V, Gm=1600. This ECC803s are from the same batch code of U21064000. This valves are in pristine condition and have never been used.

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TECHNICS SA-1000 330 WATTS PER CHANNEL MONSTER RECEIVER POWER AMPLIFIER SUPERB

THIS IS TECHNICS SA-1000 330 WATTS PER CHANNEL MONSTER RECEIVER POWER AMPLIFIER USED FOR LITTLE HOURS AND ITS IN LIKE NEW WORKING CONDITION AND VERY CLEAN ONLY FEW MINOR MARK AND MINOR CHIP ON WOOD AND ONE OF THE SWITCH BUTTON IS DIFFERENT VERY HEAVY AMP.

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JBL Lenses

Up for sale is a pair of JBL lenses, and only the lenses are for sale from the pictures above. Still in great condition, They are rare to get. And are sold as is.

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Tesla 15´´ vintage alnico woofers for klangfilm project

There is a pair of vintage 15´´TESLA cinema alnico woofers in perfect condition,just reconed by a professional( who worked in TESLA factory for about 30 years) using original Tesla parts.Tesla factory was sold to a new owner,who stopped production,so no more original parts for this petite woofers. Cones,surrounds,domes,coils are new,baskets have some minor scratches,magnets look a bit awful,but are checked and revitalized, from the face they look new. Probably one of the best woofers ever made, solid alloy baskets,huge alnico magnets,paper cones with cloth surround,paper coil formers.Sensitivity 96dB,100 wats,resonace frequency 24 Hz,frequency response 30- 4000Hz,impedance 8 ohms.I have tested them in my openbaffle system together with Isophon ovales and Aurum Cantus ribbon tweeters,they SOUND GREAT!Ideal for SE tube amp.Feel free to ask any question or pics in higher resolution. Ship worldwide,ask me for actual shipping to your destination before bidding,please (Europe about 65EUR.) As this item is second-hand, no warranty can be given. Shipment is at risk of the buyer. But everything will be packed professionally,speakers have the cones protected with plywood,I use plenty of bubble wrap and tape to insure that your item arrives in perfect condition.Wooden box on request.

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