Description
DUAL C 939 AUTOREVERSE Compact cassette. Ottimo Compact tedesco Dual che non ha bisogno di presentazioni Tutto ben funzionante e bellissimo da vedere come si usava negli anni 70/80 /90 . con Autoreverse che per le macchine orizzontali dellepoca erano una vera novità e gran comodità. La sua capottina color fumè originale marcato Dual ha alcune incollature e segni del tempo e anni trascorsi. Dalle foto lo si vede benissimo ,per il resto ottimo e ben funzionante The more experience youve had with tape decks, the more youre likely to appreciate the Dual C939s performance and versatility. Apply the most demanding musical tests; sustained piano tones for flutter; extreme highs and lowes for frequency response; soft passages for Signal-to-Noise ratio - and you will hear no diference between the original disc and tape made on the 939. all of which brings to life the 939s impressive specifications for wow and flutter (0,05%), Signal-to-Noise (65 dB) and frequency response (20-17,000 Hz). Now wed like to take you through the 939s astonishing array of design and operating features.Auto/reverse playback, bi-directional record. The 939 reverses automatically in play-back - a C-90 will play 90 minutes without interruption. Theres continuous play too. Recording is bi-directional. When the tape reaches the end, youu just reverse direction.With any other deck you either live with unwanted sounds on a tape or erase them abruptly - without hearing what youre doing until its too late.With the 939s unique fade/edit control you can fade out those annoyances gradually, smoothly and permanently. And then fade back into the music. While listening. Because its all done during playback.Drive system and tapeheads like no other.Duals powerful Continuous-Pole /synchronous motor,, two capstans and two drive belts maintain speed accuracy within 0,5% . A C-90 cassette fast-winds in lust over a minute, the time other decks need for a C-60. hard permalloy tapeheads are used for their extended life and superior magnetic linearity. The four-track record/playback head switches electronically when the tape changes direction, it never shifts position. The result; perfect tape alignment in both directions at all times. Specifications:The Dual C939 meets or exceeds the requirement of DIN 45 500 for domestic HiFi equipment. The data given base upon the current DIN reference tapes.Tape Speed: 4,75 cm/sDeviation from Correct Speed: less than ±1%Wow and Flutter: weighted RMS : less than ±0,07%To DIN for reproduction only : less than ±0,10%To DIN for recording/reproduction : less than ±0,10%Frequency Response (ref-to DIN tolerances)Fe Standard Tape : 20 -14,000 HzCrO? Tape : 20 - 16,000 HzFeCr Tape : 20 - 17,000 HzDistortion K3 at 333 Hz (ref.to 0 dB VU)Fe Standard Tape : less than 1,2 %CrO? Tape : less than 1,8 %FeCr Tape : less than 1,0 %Signal-to-Noise Ratio (weighted)With Dolby NRFe Tape : better than 63 dBCrO? Tape : better than 63 dBFeCr Tape : better than 65 dBWithout Dolby NRFe Tape : better than 53 dBCrO? Tape : better than 56 dBFeCr Tape : better than 58 dBChannell Separation at 1000 HzBetween Stereo Channels : better than 30 dBIn Oppositie Direction : better than 60 dBErasure at 1000 HzFe Tape : better than 70 dBCrO? Tape : better than 65 dBFeCr Tape : better than 70 dBOscillator (push-pull oscillator): 80 HzInputs ( Sensitivity at 0 dB VU)Microphone : 0,30 mV/10 k hmReceiver/AmplifierDIN Connector : 0,45 mV/4,7 k ?RCA Jack : 70 mV/ 82 k ?OutputsReceiver/AmplifierDIN Connector : 0 -700 mV/1,8 k ?RCA Jack : 0 - 700 mV/1,8 k ?Headphones : 4 - 2000 k ? adjustableFast Winding: C-60 less than 60 sec.Complement: 4 Ics; 49 Transistors; 30 Diodes; 1 Darlington photo cell; 28 LEDsPower Requirements: 100 -125 V / 220 - 240 V, 50/60 HzPower Consumption: approx. 35 VA
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