This tape recorder has been completely refurbished by a Revox expert, Blue Audio. All capacitors and idlers have been replaced, the tape path has been adjusted, and all electronic adjustments have been made. We include the original manual, 2 metal Nab Hub adapters, a metal blank tape (a recording test has been made), and a metal Revox empty reel. The Deck is working perfectly, as a new one, out of the box. Due to weight, it will be securely packed and shipped through a reliable carrier with insurance. Full Technical Decxription: Revox B77 NAB Tape Deck, proven Professional Design. Winding time: Approx. 135 sec for 3600 ft of tape Integrated control logic with tape motion sensor provides for any desired transition between different operating modes. Contactless electronic switching all motors. Remote control of all functions and electronic timer operation are possible. Precision Transport Professional recordists know that for long-term stability and performance successful tape transport design must begin with the chassis frame itself. No matter how smooth-running the motors and highly-refined the heads, since both are referenced to the recorder's frame, any long-or-short-term flexing or imprecise machining in the chassis will inevitably degrade performance. To achieve the required stability - at a weight compatible with home use - the Revox B77 uses a sturdy aluminium die-casting for the chassis, headblock, pinch roller and mechanism, and each mounting point is painstakingly machined for extraordinary tolerances. The Nextel-coated case around the transport provides a similarly sturdy layer of protection for the mechanism. Precision Three-Motors Drive Studer-Revox manufactures its own drive and winding motors so their characteristics can be optimized for recorder use.. The capstan motor employs a precision-machined set of teeth at the circumference of its motor. As the motor turns, these teeth create a series of pulses that are read by a tachometer head and whose rate is compared against the frequency of a stable internal oscillator. In this way, even very slightest speed variations are immediately detected through a fast-acting servo system. To reduce wow and flutter even further, the direct-drive capstan shaft is machined to an accuracy of one one-thousandth of a millimeter, is hard chrome-plated and is artificially aged during the manufacturing process to ensure long-term stability. Precision Heads and Electronics Studer tape heads - from 1 to 24 track models - are world-renowned and are designed and build in our own facilities. The head cores are made from a physically hard, magnetically soft metal allay called Revodur, which has nearly perfect electromagnetic qualities. Whether you purchase your B77 in a quarter- or half-track stereo format its heads will be built to the same standard of polish employed in our professional studio decks. An infrared sensor within the head area (2) actuates automatic shut-off in the event of tape run-out or breakage. Three-Head Monitoring and Special Effects Because the record and playback heads of the B77 are individual, separate units, each can be optimized for its specific function. A narrow gap is employed for playback to extend the frequency response, while a wider gap is employed during recording to ensure full penetration of the oxide layer on the tape. Since the record and playback electronics are also separate, this permits you to monitor the recorded result a split-second later, making direct comparison possible to avoid the possibility of an unsatisfactory recording. The sophisticated electronics and separate heads of the B77 also permit various special recording effects. Without external components or cables the Revox B77 can: - Duoplay, where both recorded tracks are used simultaneously but for different, interspersed information, as in language laboratories. - Simuplay, where a running commentary musical part, or translation is recorded on one track and a synchronized musical part or other accompanying material is recorded on the other. - Sound-on-Sound, where a single individual, by playing various musical parts and successively mixing his live part with a previously recorded section, can build up an entire performance. - Echo/Reverb, where tape-delayed echo or ambience can be added to a recorded track. Precision Editing Facilities An accurate splicing block and non-magnetic sheertype cutter are build right into the front panel of the B77, encouraging creative tape editing. Additionally, a lever switch is included that activates the playback amplifiers during the fast-winding modes, and shifts their operation to a pulse-type control. In this way you can quickly shuttle back and forth between fast forward and rewind to find the exact point at which an editing cut is to be made. For even finer-pin pointing of critical cuts the reels can be rotated manually while the tape remains against the playback head. Specs: Electric current supply (voltage sector): 100,120,140,200, 220,240 V 50 ... 60 Hz, max 80 W Weight: Approx. 37 lbs. 7 ozs (17 kg) Dimensions (W x H x D): 17.8 x 16.3 x 8.14 inches, (452 x 414 x 207 mm ) Required clearance for 10.5 inch reels ,Max width: 21.2 inches (538mm), Max height: 18.25 inches (463.5 mm)