Sansui Au 11000A Integrated Stereo Verstärker 2 X 110 Wrms Vintag 1977 Good Look Die Beschreibung dieses Artikels erfolgte durch automatische Übersetzung. Bei anstehenden Fragen, wenden Sie sich bitte an uns. SANSUI AU 11000A SEHR SELTENER integrierter Stereoverstärker 110 + 110 Watt RMS Vintage 1975, komplett renoviert, GUTE AUSSEHEN Original aus Japan, komplett restauriert und 100 % tadellos funktionsfähig – Betrieb mit 100/120/220/240 Volt. Sansui AU-11000A Integrierter Stereoverstärker (1977-79) Beschreibung Erstklassiger integrierter Verstärker, der satte 110 Watt pro Kanal über einen weiten Frequenzbereich liefert. Der AU-11000A verfügt über umfassende Bedienelemente, um die musikalischen Fähigkeiten des Verstärkers optimal zu nutzen. Spezifikationen Ausgangsleistung: 110 Watt pro Kanal in 8? (Stereo) Frequenzgang: 5 Hz bis 80 kHz Gesamte harmonische Verzerrung: 0,05 % Dämpfungsfaktor: 70 Eingangsempfindlichkeit: 2 mV (MM), 150 mV ( DIN ), 150 mV (Leitung) Signal-Rausch-Verhältnis: 75 dB (MM), 90 dB (Leitung) Kanaltrennung: 60 dB (MM), 60 dB (Line) Ausgang: 150 mV (Line), 30 mV ( DIN ), 1 V (Vorverstärkerausgang) Lautsprecherlastimpedanz: 4? bis 8? Abmessungen: 460 x 176 x 407 mm Gewicht: 19,2 kg Jahr: 1977 Bei den Modellen Sansui AU-11000 und AU-11000A handelt es sich um hochwertige Verstärker aus der AU-Serie von Sansui aus den 1970er Jahren, die jedoch einige technische und gestalterische Unterschiede aufweisen. 1. Technische Unterschiede •Schaltungsdesign: Die AU-11000A-Version weist im Vergleich zum ursprünglichen AU-11000 geringfügige Änderungen in der internen Schaltung auf. Diese Anpassungen wurden vorgenommen, um die thermische Stabilität zu verbessern und Verzerrungen zu reduzieren, um einen saubereren und gleichmäßigeren Klang zu erzielen. •Stromversorgung: Der AU-11000A wurde angepasst, um die Effizienz der Stromversorgung zu verbessern und eine stabilere Leistung bei wechselnden Lasten zu ermöglichen. 2. Leistung und Sound •Klangqualität: Obwohl beide Modelle eine hervorragende Klangqualität bieten, behaupten einige Enthusiasten und Experten, dass der AU-11000A aufgrund seiner Schaltungsverbesserungen und geringeren Verzerrungen einen etwas feineren Klang hat. Der Unterschied kann jedoch subtil sein und hängt vom Zuhörer ab. •Leistung: Beide Modelle haben die gleiche Nennleistung (110 W pro Kanal), der AU-11000A liefert jedoch möglicherweise eine etwas effizientere Leistung. 3. Ästhetische Unterschiede •Frontplatte und Bedienelemente: Äußerlich sind die Änderungen minimal. Beide Modelle behalten den klassischen Stil von Sansui bei, mit einer Aluminiumfrontplatte und robusten Knöpfen. In einigen Märkten wies der AU-11000A jedoch geringfügige Unterschiede in der Beschriftung oder Verarbeitung auf. 4. Verfügbarkeit und Sammlerwert •Verfügbarkeit: Der AU-11000 wurde zuerst veröffentlicht und bald durch den AU-11000A ersetzt. Die „A“-Version ist weniger verbreitet und kann aufgrund ihrer geringfügigen Verbesserungen für Sammler als wertvoller angesehen werden. •Sammlerwert: Beide Modelle gelten als Sammlerstücke, der AU-11000A kann jedoch aufgrund seiner Seltenheit und technischen Verbesserungen auf dem Vintage-Audiomarkt höhere Preise erzielen. Zusammenfassend lässt sich sagen, dass der Sansui AU-11000A eine leicht verbesserte Version des AU-11000 ist, mit technischen Änderungen, die seine Leistung und seinen Klang optimieren. Obwohl die Unterschiede geringfügig sind, wird die A-Version von einigen wegen ihrer zusätzlichen Raffinesse bevorzugt. SPANISCH: Die Sansui AU-11000 und AU-11000A sind hochwertige Verstärker der Sansui AU-Serie aus den 1970er Jahren, weisen jedoch einige technische und gestalterische Unterschiede auf. 1. Technische Unterschiede •Schaltungsdesign: Die AU-11000A-Version weist im Vergleich zum ursprünglichen AU-11000 geringfügige Änderungen an der internen Schaltung auf. Diese Modifikationen wurden vorgenommen, um die thermische Stabilität zu verbessern und Verzerrungen zu reduzieren, um einen saubereren und gleichmäßigeren Klang zu erzielen. •Stromversorgung: Der AU-11000A wurde optimiert, um die Effizienz der Stromversorgung zu verbessern und eine stabilere Leistung bei wechselnden Lasten zu ermöglichen. 2. Leistung und Klang •Klangqualität: Obwohl beide Modelle eine hervorragende Klangqualität bieten, behaupten einige Enthusiasten und Experten, dass der AU-11000A dank seiner Schaltungsverbesserungen und geringeren Verzerrungen einen etwas feineren Klang hat. Der Unterschied kann jedoch geringfügig sein und hängt stark vom Ohr des jeweiligen Benutzers ab. •Leistung: Die Nennleistung beider Modelle ist gleich (110 W pro Kanal), der AU-11000A bietet jedoch möglicherweise eine etwas effizientere Leistung. 3. Ästhetische Unterschiede •Frontplatte und Bedienelemente: Was das äußere Design betrifft, sind die Änderungen minimal. Beide Modelle behalten das gleiche klassische Sansui-Design mit einer Aluminiumfrontplatte und stabilen Knöpfen bei. In einigen Märkten wies der AU-11000A jedoch leicht abweichende Details bei der Beschriftung oder Verarbeitung auf. 4. Verfügbarkeit und Sammelwert •Verfügbarkeit: Der AU-11000 wurde zuerst veröffentlicht und kurz darauf durch den AU-11000A ersetzt. Version „A“ ist weniger verbreitet und kann aufgrund der geringfügigen Verbesserungen für Sammler als wertvoller angesehen werden. •Sammlerwert: Beide Modelle gelten als Sammlerstücke, aber die AU-11000A-Version kann auf dem Markt für Vintage-Audiogeräte aufgrund ihrer geringeren Verfügbarkeit und technischen Verbesserungen höhere Preise erzielen. Kurz gesagt, der Sansui AU-11000A ist eine leicht verbesserte Version des AU-11000 mit technischen Änderungen, die seine Leistung und seinen Klang optimieren. Obwohl die Unterschiede geringfügig sind, wird die A-Version von einigen wegen ihrer zusätzlichen Raffinesse bevorzugt.•Schaltungsdesign: Die AU-11000A-Version weist im Vergleich zum ursprünglichen AU-11000 geringfügige Änderungen an der internen Schaltung auf. Diese Modifikationen wurden vorgenommen, um die thermische Stabilität zu verbessern und Verzerrungen zu reduzieren, um einen saubereren und gleichmäßigeren Klang zu erzielen. •Klangqualität: Obwohl beide Modelle eine hervorragende Klangqualität bieten, behaupten einige Enthusiasten und Experten, dass der AU-11000A dank seiner Schaltungsverbesserungen und geringeren Verzerrungen einen etwas feineren Klang hat. Der Unterschied kann jedoch geringfügig sein und hängt stark vom Ohr des jeweiligen Benutzers ab. •Frontplatte und Bedienelemente: Was das äußere Design betrifft, sind die Änderungen minimal. Beide Modelle behalten das gleiche klassische Sansui Garantía del fabricante Sin garantía Salidas de audio Banana Jack Potencia RMS 2 X 110 Watts RMS Año de fabricación 1977-1979 Color Negro Número de salidas 4 Entradas de audio Estéreo RCA Número de entradas 7 Cantidad de unidades 1 Producto compatible Similar Al Model AU-11000 Tipo Amplificador integrado Marca Sansui Modelo AU-11000A Tipo de unidad Unidad Potencia 2 X 110 Watts RMS Clase de amplificador AB Características Término análogo Características Very RARE Model, Very Dificult To Guet Número de canales 2 País/Región de fabricación Japón EAN No aplicable

Sansui Au 11000A Integrated Stereo Amplifier 2 X 110 Wrms Vintage 1977 Good Look The description of this item has been automatically translated. If you have any questions, please feel free to contact us. SANSUI AU 11000A VERY RARE Integrated Stereo Amplifier 110 + 110 Watts RMS Vintage 1975 All Refurbished GOOD LOOK Original from Japan, it is completely restored and works perfectly at 100% - Work on 100/120/220/240 volts. Sansui AU-11000A Integrated Stereo Amplifier (1977-79) Description Top of the line integrated amplifier delivering a solid 110 watts per channel over a wide frequency range. The AU-11000A has comprehensive controls to make best use of the amplifiers musical capability. Specifications Power output: 110 watts per channel into 8? (stereo) Frequency response: 5Hz to 80kHz Total harmonic distortion: 0.05% Damping factor: 70 Input sensitivity: 2mV (MM), 150mV ( din ), 150mV (line) Signal to noise ratio: 75dB (MM), 90dB (line) Channel separation: 60dB (MM), 60dB (line) Output: 150mV (line), 30mV ( din ), 1V (Pre out) Speaker load impedance: 4? to 8? Dimensions: 460 x 176 x 407mm Weight: 19.2kg Year: 1977 The Sansui AU-11000 and AU-11000A models are high-quality amplifiers from Sansuis AU series from the 1970s, but they have some technical and design differences. 1. Technical Differences •Circuit Design: The AU-11000A version has slight modifications in its internal circuitry compared to the original AU-11000. These adjustments were made to improve thermal stability and reduce distortion, aiming for a cleaner and more consistent sound. •Power Supply: The AU-11000A was adjusted to improve power supply efficiency, allowing for more stable performance under variable loads. 2. Performance and Sound •Sound Quality: Although both models offer excellent sound quality, some enthusiasts and experts claim that the AU-11000A has a slightly more refined sound due to its circuit improvements and reduced distortion. However, the difference can be subtle and depends on the listener. •Power: Both models have the same nominal power (110 W per channel), but the AU-11000A may deliver slightly more efficient performance. 3. Aesthetic Differences •Front Panel and Controls: Externally, changes are minimal. Both models maintain Sansuis classic style, with an aluminum front panel and robust knobs. However, in some markets, the AU-11000A had slight differences in labeling or finish. 4. Availability and Collector Value •Availability: The AU-11000 was released first and was soon replaced by the AU-11000A. The “A” version is less common and may be considered more valuable to collectors due to its slight improvements. •Collector Value: Both models are considered collectible, but the AU-11000A can reach higher prices in the vintage audio market due to its rarity and technical enhancements. In summary, the Sansui AU-11000A is a slightly improved version of the AU-11000, with technical changes that optimize its performance and sound. Although the differences are subtle, the A version is preferred by some for its added refinement. SPANISH: The Sansui AU-11000 and AU-11000A are high-quality Sansui AU series amplifiers from the 1970s, but they have some technical and design differences. 1. Technical differences •Circuit design: The AU-11000A version has slight modifications to its internal circuitry compared to the original AU-11000. These modifications were made to improve thermal stability and reduce distortion, seeking a cleaner and more consistent sound. •Power supply: The AU-11000A was tuned to improve power supply efficiency, allowing for more stable performance under varying loads. 2. Performance and sound •Sound quality: Although both models offer excellent sound quality, some enthusiasts and experts maintain that the AU-11000A has a somewhat more refined sound, thanks to its circuit improvements and lower distortion. However, the difference can be subtle and depends a lot on the ear of each user. •Power: The power rating of both models is the same (110W per channel), but the AU-11000A may offer slightly more efficient performance. 3. Aesthetic differences •Front panel and controls: In terms of external design, the changes are minimal. Both models maintain the same classic Sansui styling with an aluminum front panel and sturdy knobs. However, in some markets, the AU-11000A had slightly different details in labeling or finishing. 4. Availability and collection value •Availability: The AU-11000 was released first, and was replaced shortly after by the AU-11000A. Version “A” is less common and may be considered more valuable to collectors due to its slight improvements. •Collector Value: Both models are considered collectors items, but the AU-11000A version can command higher prices in the vintage audio equipment market due to its lower availability and technical improvements. In short, the Sansui AU-11000A is a slightly improved version of the AU-11000, with technical changes that optimize its performance and sound. Although the differences are subtle, the A version is preferred by some for its added refinement.•Sound Quality: Although both models offer excellent sound quality, some enthusiasts and experts claim that the AU-11000A has a slightly more refined sound due to its circuit improvements and reduced distortion. However, the difference can be subtle and depends on the listener. •Sound quality: Although both models offer excellent sound quality, some enthusiasts and experts maintain that the AU-11000A has a somewhat more refined sound, thanks to its circuit improvements and lower distortion. However, the difference can be subtle and depends a lot on the ear of each user. •Front panel and controls: In terms of external design, the changes are minimal. Both models maintain the same classic Sansui styling with an aluminum front panel and sturdy knobs. However, in some markets, the AU-11000A ha Garantía del fabricante Sin garantía Salidas de audio Banana Jack Potencia RMS 2 X 110 Watts RMS Año de fabricación 1977-1979 Color Negro Número de salidas 4 Entradas de audio Estéreo RCA Número de entradas 7 Cantidad de unidades 1 Producto compatible Similar Al Model AU-11000 Tipo Amplificador integrado Marca Sansui Modelo AU-11000A Tipo de unidad Unidad Potencia 2 X 110 Watts RMS Clase de amplificador AB Características Término análogo Características Very RARE Model, Very Dificult To Guet Número de canales 2 País/Región de fabricación Japón EAN No aplicable

I own 6 Sansui Receivers and am selling a few of them. This one is a gem. Fully restored Sansui 1000A, tube receiver. It has as smooth of a tube sound as you’ll ever hear! NOS tubes throughout with all new caps and LED lights installed 2 years ago. Super low hours as this one mainly sat in our spare bedroom. Functions with no issues.

Gebrauchter aber funktionsfähiger Verstärker Legende von Sansui der AU 11000A. Das Gerät wurde damals oft und gerne gebraucht, daher sind einiegs an Gebrauchspuren und Kratzer zu finden. Es ist halt wirklich aus den 70er Jahren. Ich hoffe das ist auf den Fotos zu erkennen. Mit dabei Bedienungsanleitung und Schaltplan. Abholung wäre erwünscht um das Gerät vor Ort zu begutachten. Sicherlich wäre ein Versand möglich, da aber keine OVP mehr existiert ist die Verpackung und Versand , das Gerät wiegt alleine schon 20 Kg, schon etwas teurer. Das Gerät wurde mit Lautsprechern, Plattenspieler und Cd Spieler getestet und es spielte ohne Probleme. Anzahl der Eingänge: Phono 1: umschaltbar 2 mV, 4 mV, 8 mV und umschaltbar 30 kOhm, 50 kOhm, 100 kOhmPhono 2: 2,5 mV, umschaltbar 30 kOhm, 50 kOhm, 100 kOhmTuner: 150 mV, 50 kOhmAux 1 & 2: 150 mV, 50 kOhmTape Deck 1 & 2: 150 mV, 50 kOhmTape Deck 2 DIN:Anzahl der Ausgänge: Tape Deck 1 & 2 Rec: 100 mV, 1,5 kOhmTape Deck 2 Rec/Play DIN: 30 mV, 70 kOhmKopfhörer:Klemmen für 4 Lautsprecher Technische Daten Dauerleistung (bei Klirrfaktor) 8 Ohm: 2 x 110 W4 Ohm: 2 x 180 WDynamikleistung 8 Ohm:4 Ohm:Gesamtklirrfaktor: < 0,05% von 20 - 20000 HzDämpfungsfaktor: 70 bei 8 OhmGesamtfrequenzgang: 5 - 80000 Hz, + 0 dB, - 1,5 dBGeräuschspannungsabstand: Phono 1 & 2: > 75 dBTuner: > 90 dBAux: > 90 dBKlangregelung: Bass: ± 10 db bei 30 Hz, Einsatzfrequenz wählbar: 150 Hz, 300 Hz, 600 HzMitten: ± 15 db bei 1000 HzHöhen wählbar: ± 10 db bei 20000 Hz, Einsatzfrequenz wählbar: 2 kHz, 4 kHz, 8 kHzLow Filter wählbar: - 3 dB bei 20 Hz oder 40 HzHigh Filter wählbar: - 3 dB bei 7 kHz oder 12 kHzLoudness: + 10 dB bei 50 Hz, + 8 dB bei 10 kHzNF-Muting wählbar: 0 dB, - 10 dB, - 30 dB Ich schließe jede Sachmängelhaftung aus

This item was pulled from a working sansui 1000a unit, See pictures for details, It is sold as-is without warranty.

Original Service Manual / Anleitung: Sansui AU-9900A / 11000A geeignet für: integrated stereo amplifier / Verstärker Sprachen: ENG Es handelt sich um einen Original-Artikel, der sich in einem sehr guten und vollständigen Zustand befindet, aber geringe altersbedingte Nutzungsspuren aufweisen kann.

SANSUI AU-9900/11000 and AU-9900A/11000A Integrated Stereo Amplifier Service ManualsLanguage: English These Service Manuals in PDFformat will be sent to you.-------------------------------------------------------------------------------------------------------------------- I have over 2,000 service & user manuals from various manufacturers, too many to list at one time. If I can help you with anything else please let me know. I will try to help you. If you have any questions please dont hesitate to ask. I try to answer any questions within 24 hours. private sales

Sansui 1000a Mode Selector. Used, working properly.

SANSUI 1000A Tube Receiver UNCRUSHED BOTTOM FOOT.CHANCES ARE that you have a crushed one.

Sansui 1000A Selector switches - parting out unit. FACEPLATE IS ALREADY SOLD - PICTURES ARE TO SHOW WHERE THESE SWITCHES GO.

SANSUI 1000A aus den 1960er Jahren .Voll funktionsfähig. Nach der Inspektion. Es wurden 85 % der Originalröhren mit dem P-508-Gerät überprüft. Die Endstufenröhren wurden durch die gleichen modernen 7591A EH-Röhren von Electro-Harmonix ersetzt. Sansui hat 21 Elektronenröhren Gewicht ca. 22 kg Klasse AB Versand möglich. Gut verpackt in 2 Kartons und Styropor

SANSUI 1000A aus den 1960er Jahren .Voll funktionsfähig. Nach der Inspektion. Es wurden 85 % der Originalröhren mit dem P-508-Gerät überprüft. Die Endstufenröhren wurden durch die gleichen modernen 7591A EH-Röhren von Electro-Harmonix ersetzt. Sansui hat 21 Elektronenröhren Gewicht ca. 22 kg Klasse AB Versand möglich. Gut verpackt in 2 Kartons und Styropor

Knobs for Sansui 1000a Mode/Function & band selector .Very good condition and price is for ONE KNOB ONLY ! $22.00Shipped with economy shipping within three business days of funds clearing my bank. Shipping only to lower 48 and sold as is .

Biete seltenen und kultigen Sansui AU 11000A an. Der verstärker hat einen sehr guten Ruf und Klang, wird hier zuletzt sogar höher gehandelt! Er funktioniert normal soweit ich das beurteilen kann.Er ist sehr schwer, deshalb und auch damit der Käufer selbst überprüfen kann, kein VersandBin Privatperson, deshalb keine Garantie Gewährleistung oder Rücknahmepreis. Bitte bis 11:09. kein Sofortkauf, wenn sie nicht einverstanden sind bis zu meiner Rückkehr zu warten

*This listing is fora Completely Overhauled, Burned-In, Tested, and Guaranteed Sansui1000A* Am besten persönlich abholenThis is not the average ebaythis has been serviced job where someone replaced only the clearlydefective capacitors with cheap parts to make it work. Youregetting a restored, completely rebuilt, world-class Sansui1000A!With this unit, I took my timeto test, clean, repair, replace, and upgrade everythingnecessary while using only the most appropriate high quality parts. Theattention to detail here is key. I strove to keep the unitas original as possible, replacing only what is necessary in the audiosections while maintaining original lead dress.While Im not muchfor superlatives, this unit does of course sound very good! Minimal distortion, fast and deep bass (especially with thepresence on), clean midrange, and clear high end. Basicallywhat anyone should expect from a decent piece of tube audio gear.With the exception ofrepair-in-progress photos, I took pains to slightly overexpose the photos tothe point where it shows random dust! I want there to be NO surprises for thenew owner, but do note that most small bits of dust, small defects, etc. cantbe seen under normal lighting conditions. Known IssuesThere are many knownissues concerning any potentially restorable Sansui 1000A. Those issues, aswell as any specific to the unit under repair, MUST be accounted for. The mostprominent include:1. All oil capacitorsmust be replaced. Like all Japanese oil caps of this era, they will be leaky,open, or shorted. 2. All electrolytics must be replaced. This unit was built in1971, and has sat unused for an indeterminate amount of time. Hum and highimpedance in the audio amp are not acceptable, especially given the FARsuperior replacement parts available today. 3. Heat. These units did not provide enough ventilation,especially in the area surrounding the left channel output tubes and powersupply resistors. This commonly leads to output tube and/or transformerfailure. 4. Switches. The rotary wafer switches (Mode, Band Selector,Selector) as well as the front panel rocker switches (Presence, Loudness, etc.)invariably come with a great deal of black oxide on the contacts. This causesproblems due to intermittent or open connections. 5. Output tube bias circuit. Many units come with a biascircuit that does not allow bias adjustment of individual tubes. This isunacceptable in a high-end piece of equipment. 6. No power supply soft-start. The 1000A comes up to over 500Vwithin seconds of turn-on...however the tube cathodes are not warmed up foranother 30 seconds! This causes unnecessary cathode stripping and temporaryvery high voltage on the B+ rail, stressing components. 7. Illumination. Fuse type dial face bulbs andStereo indicator bulbs are frequently burned out, and as theyrequire the disassembly of the faceplate, are difficult to replace. 8. Tubes! Many tubes may be marginal, bad, or simply noisy soall must be tested and auditioned. 9. Solid-state rectifiers. These units use solid staterectifiers from the 1970s which are of very poor quality in comparison toreplacement parts available today. 10. Input/Output connectors. The RCA jacks and speakerconnectors are of dubious quality and always arrive with some sort ofcorrosion, even if its very thin. 11. Flimsy 2-Prong AC cable. Any decent equipment mustinclude a high-quality, properly grounded AC cord. 12. Fuse. This should be replaced with a rating suitable tothe line voltage without taking into account the outlets on the rear whichare frequently left unused. 13. One AC input is 117VAC. There is a selector for input linevoltage, one of which is 117VAC, whereas the line voltage in many countries thehousehold line now averages between 120-130V. Using the unit at these voltages increaseshigh voltage and filament voltage, shortening the life of the tubes. 14. Physical condition. Being a vintage receiver isnt easy!They usually come with some wear and tear, and are many times quite dirty. Repairs and RestorationChassisChassis & knobs cleanedinside and out. Dust, dirt, corrosion, etc. removed.Top cover and base panelre-painted. Both covers were cleaned, primed, paintedwith two coats, then baked in an oven to harden. I used the nearoriginal color on top with flat black on the bottom. If you look at thetop panel with a certain angle on the light you can see deviations from theshape of the metal underneath; these are not normally visible. Bottom panel hasgrommeted bias adjustment access holes drilled, all mounting areas have beencleaned to provide a nice low resistance ground path, and the original mountinghardware has been replaced.Transformer coresrepainted. All three transformers were carefully removed,their bells taken off, windings and leads taped off, and their cores primedthen painted with flat black high heat paint.Faceplate, dial glass, andinside the dial were disassembled, cleaned, andreassembled. The bezel was professionally polished. There are small (basicallyunnoticable) blemishes on the panel and one on the bezel corner which Ihave taken photos of. Dial string was replaced, re-tensioned, and the dialindicator set correctly.New rubber feet installed. I didnot like the other set of hard plastic feet as it allowed the receiver to slidetoo easily and they tended to scratch surfaces!ElectronicsALL low voltage audio signalpath capacitors replaced. Many times overlookedwhen rebuilding these units due to their location/low voltage andtheir not being oil capacitors - theyre old mylar and ceramic! Theseinclude the audio premp input capacitors, audio section of the FMdemultiplexer, and Loudness switch to name a few. Theyare all now polystyrene, polypropylene, silver mica, and PIO (audio preampinput capacitors). ALL Oil capacitors replaced. I installed NOS Aerovox CP04, GudemanXFHS, & Sprague CP08/196P paper in oil (PIO) glass hermetically sealedmil-spec parts. In the chassis pictures, many of these have heat shrink overthem (this is to cover the metal case to avoid possible shorts) or wiressoldered to the case (shorting the case to ground providing shielding andeliminating the possibility of feedback from case). I used theseparts to maintain the vintage tone that is associated with units fromthis era.ALL Electrolytics replaced. MainB+ capacitors are NichiconPW. Secondary B+ capacitors are NichiconCA. Screen decoupling electrolytic replaced with two 47uF in series with 220kequalizing resistors as that is the only part of the power supply that reachesabove 450V during normal or high line conditions (higher voltage rated qualityelectrolytics are no longer available). All other electrolytics arePanasonic EB, ED, or EM. All types are rated at 105C with very low impedanceand all but the PW are rated for at least 10,000Hrs.Fresh heat shrink and nylonbraid around external power resistor wires. Theold braid was cracked and hardened.Audio amplifier hum pots. Theleft and right channel of the audio amplifier have independent DC biasedfilament supplies. Each has a 100 ohm hum adjustment pot, which was adjustedfor lowest output hum.Phono/Mic preamplifier. Theelectrolytics and output coupling capacitors were replaced, but no othermodifications were performed. I used the mic and phono inputs and found thenoise not to be objectionable at all! Judging by the current draw, this couldbe replaced with a simple JFET preamp for lower noise and higher quality, but Ichose not to do this as most of the people I know use separate phono preampsanyhow.Some items disabled. Theseinclude: 1. The 5-pin DIN tape input connector, as these are rarelyused and it would have been more work to re-attach after the RCA inputrebuilds. 2. The speaker phase switch (see below) 3. The headphone jack and speaker on/off switch, as they were poorquality, superfluous functions that relied on a dummy load that wasremoved. This enabled me to add a line filter and IEC socket to the powersupply! ControlsALL pots cleaned with Deoxit. Noisefree is the way to be.Speaker phase switch disabled. Originalswitch contacts were pitted from hot switching, and this seemed only tocause trouble as a high-resistance contact in the speaker circuit. For me,theres plenty of other ways to reverse phase if need be.Speaker impedance switchreplaced. When disassembled, I found the contacts pitted beyond repair. It wasreplaced with a near-identical manufacture switch of the same era that wasdisassembled and had its contacts cleaned and polished before installation.ALL eight front panel rockerswitches and ALL three rotary disassembled and cleaned. Thiswas, without a doubt, the most time-consuming part of the job! With thewafer and rocker switches in the 1000A (and most wafer switches in general!),due to the type of oxidation on the contacts (read: thick, black, sometimesmixed with hardened lubricating grease, and possibly non-conductive)the best method is to clean each contact mechanically with a trusty pencileraser. Even then, some contacts needed to be pre-cleaned with naptha to removesome very thick oxide/grease. All contacts were tested after repair using a4-wire digital ohmmeter to check contact resistance. TubesALL tubes havebeen precision tested. Any tube testingmarginal, bad, or noisy was discarded. Pins have been cleaned on all miniaturetypes. The tubes installed are as follows: Audio 12AX7 preamp tubes replaced with RCA short plate. 6AN8A phase inverter tubes are NOS Motorola branded Tung-Sol 7591A power output tubes replaced with new manufactureTung-Sol. Tuner 6AU6 are original Matsutshita. 6BE6 replaced with NOS RCA. 6AQ8 are original Matsutshita. 6CW4 were replaced with NOS RCA. 6BA6 are original Matsutshita. 6BL8 are original Matsutshita. Upgrades:Adjustments & MeasurementsFilament voltage. Filamentvoltage was measured at the pins during operation and found to be within 2% oflisted value.High voltage. Highvoltage measured at all points in the power supply during operation andfound to be within 5% of listed value (depending on how heavily the outputtubes were biased).Bias and solid state preampvoltage. Measured during operation and found to be within 5% of stated valueon the preamp, with the bias range having an upper end at approx -27V.Output tube bias. Outputtube bias was set initially, then after a week of listening adjustedto final resting point of 35mA +/-100uA per tube at 117VAC line. If youplan to operate this unit at nominal 120-130VAC line voltage, for longevity ofthe tubes I strongly suggest using a line voltage adjustment transformer todrop the incoming line voltage.Resistor values. One3k in the feedback loop was out of tolerance, so I replaced the 3k feedbackloop and the 3k & 5k L+R summing resistors in both the leftand right channel for symmetry using Dale RN60 metal film resistors.Resistor values were tested before installation to within 0.2%. Allothers were found to be within +/-5% of stated value.Tuner. AM/FMtuner and demiltiplexer was checked for proper operation and adjusted wherenecessary.Burn-in. Thisunit has been my main workshop amplifier for over a month. This allowed timefor all of the parts to stabilize and any defects to make themselves known.BiasOutput tube bias circuitcompletely rebuilt. It now has four easilyaccessable adjustments for each output tube. I installed a schottky rectifierfor low noise, Panasonic EB long-life capacitos, Dale RN60 mil-spec metal filmresistors, and Dale mil-spec 10-Turn wirewound miniature trimmers for precisionadjustment. This is mounted and assembled point-to-point on FR-4 material.Bias tubes without removingbottom cover! Gold pin-probe sockets installed nextto tubes so you can make plate current measurements using only a voltmeter.Between each probe socket is a precision 1 ohm, 0.1% non-inductivewirewound plate current sense resistor for absolute accuracy. Grommeted accessholes on the bottom of the amp allow for flathead adjustment ofindividual tube bias current. Tubes and their corresponding adjustment holesare all labeled.[Biasing should only be performed by a qualified technician asthe pin probe sockets can have up to 500VDC present!] ConnectorsALL RCA connectors replacedwith quality gold connectors. This was NOT an easy jobto do well, but I think it is well worth it! Original RCA connectors werecarefully removed. Then the RCA holes in the phenolic were reamed slightlylarger to accomodate the new connectors. Next, the opening in the chassis waswidened slightly so the new ground terminals would not contact the chassis (thetool did slip twice, but it is not noticable). They were then installed,rewired, and continuity checked.Repaced speaker terminals withmodern connectors. Same method used as with theRCA jacks. New terminals are suitable for use with wire, spades, and bananaplugs.Heat IssuesOutput tube heat sinks. Customaluminum finned tube heatsinks have been fabricated and added to theoutput tubes, doubling their average life and removing heat more quickly in theprocess.Input tube shielded heatsinks. Retrofitted with a tube shield base and added very high qualityMil-Spec IERC heat-sinking tube shields. These units typically reduce bulbtemperatures to 115°C for extra long life.Phase inverter heat sinks. The6AN8A gets surprisingly hot. Retrofitted with a tube shield base and addeda custom modified Mil-Spec IERC heat sink type unit. These units remove heatfrom the bulb more effectively than ANY other type of chassis mount tube heatsink or shield, typically acheiving bulb temperatures as low as 104°C. Forreference, a common silver shield will RAISE temperature upwards of180-200°C!DC fans installed. Thesehave been positioned to remove excess heat from the power tube areas first.Powered from the main heater winding, their power circuitry is installedso that NO noise from the fans enter the audio stages. The have their own heavyduty barrel-type power connector (next to the power cable connector). Thisallows for for easy disconnection and removal of the top cover, or todisable them during critical listening as they do make a little noise.Incandecent lamps. Dialillumination lamps and stereo indicator lamps have been replacedwith LEDs so you dont have to replace them again! They look great,eliminates bulb heat contribution, and frees up current on themain heater winding allowing the installation of the DC fans. The tunersensitivity meter and mono indicator lamps were left incandescent -the face plate would look awful with the cold, harsh glow of leds inthese positions!High VoltageHigh voltage power supplyrectifiers replaced. Here Iinstalled Cree silicon carbide schottky rectifiers to eliminateswitching noise. These are miles above the iffy60s/70s rectifiers that comes stock in these receivers.High Voltage time delaycircuit. This circuit uses a heavy-duty 30 second 120VAC time delay relaycoupled with a 120VAC coil 4PDT relay to connect the power transformerhigh voltage secondary directly to the rectifiers, shorting out a high valueresistor. This designhas several advantages: The relay coil and the delay relay heater both operate from the 117V tap on the transformer primary, eliminating any extra load on the power transformer and delivering 117V to the relay coils regardless of the actual line voltage. The 4PDT relay is arranged with three of its 5A contacts in series for higher standoff voltage while switching approx 180V AC. Series connection and AC switching increase lifetime of the relay significantly! The delay relay only controls the relay coil voltage; it should therefor last a lifetime. Both relays are socketed for easy replacement. The two relays are arranged such that when the 4PDT relay turns on, the time delay relay turns off. That means that if the stereo is quickly turned off and on again, the time delay relay will be cool, allowing the time delay function to still operate!AC Power InputComplete EMI/RFI Line Filterwith IEC power plug. Three stageinductive/capacitive design eliminates both common mode and differential modenoise from entering or exiting the line connection! Constructed using 250VACX or Y rated capacitors, 3A rated 100uH and 1.7mH inductors, anda high quality IEC plug, the filter was assembled point to point onFR4 board and rigidly mounted to the chassis both using the IECplug and steel standoffs. The IEC plug was installed so I had to makethe minimum amount of modification to the chassis.The whole line filterassembly is still (relatively) easy to remove for servicing.Fully grounded. 12 gaugesolid copper wire connects directly to the ground terminal of the IEC plug,traverses the line filter, then connects directly to chassis at the center ofthe power supply to serve as a star ground. Safe AND low noise!High quality Power Cord. 14-3shielded mil-spec cable with the shielding terminated to ground only at thehospital grade power plug.New fuse holder & Fuse. Theold fuse holder had a missing cap. The original fuse was sized totake into account the current draw from the AC outlets on the rear which havebeen removed. I will provide one installed and two additional fuses of thecorrect value for the country it is sent to (3.2A, 2.8A, or 1.5A for 100V,110-130V, or 220-240V respectively). Now THAT is arestoration. Enjoy!

Glass indicator plate is clean but could use some CAREFUL touch-up on the backside where the printing is BUT,,i say careful because the old lettering will wipe off fairly easy.. Just letting you know.The glass is mounted to the metal back support as i did not want to chance breaking the glass to remove it ! Sold as-is and will be shipped by US postal service within THREE days after funds clear my bank...FREE SHIPPINGShipping ONLY to lower 48 US.

Sansui AU-1000A operating and service manual. This is a rare and hard to find ORIGINAL MANUAL.

Sansui AU-1000A operating and service manual. This is a rare and hard to find ORIGINAL MANUAL.

Sansui 1000a faceplate . FREE shipping. to lower 48 ONLY.

Sansui AU-1000A operating and service manual. This is a rare and hard to find ORIGINAL MANUAL.

Sansui AU-1000A operating and service manual. This is a rare and hard to find ORIGINAL MANUAL.

Sansui AU-1000A operating and service manual. This is a rare and hard to find ORIGINAL MANUAL.

Sansui AU-1000A operating and service manual. This is a rare and hard to find ORIGINAL MANUAL.

Sansui 1000A Tube Receiver TUNING STRING etc. - with WORKING LIGHT! —parting out unit.