Studer A80 Series Tape Machines - MKI MKII MKIII MIV

Message Board - Studer A80 General Discussion

Studer A80VU MKI Service Manual
Studer A80 RC MKI/II Service Manual
Studer A80VU MKII/III/IV / A80MR Operating and Service Manual

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The analog tape machines of the series A80VU MKll are characterized by their extreme sturdiness, modular design and the comprehensive range of system accessories. The audio electronics features a separate plug-in amplifier module for each channel. This unit incorporates the record, reproduce, sync and line amplifiers, as well as the VU-meter and the click-free control electronics.

Audio
All balancing elements and controls are conveniently located on the front panel. Because of the large number of possible channels the machine can be configured as a one, two, or multi-channel machine (4 ... 24 channels). The configurations may be different, however, they all feature a high degree of remote controllability and flexibility in utilizing the two audio outputs by input, reproduce or sync signals.

Audio remote control
Each channel is set up for simple remote control of the operating modes SYNC, SAFE, and READY/RECORD. Machines with 8, 16, or 24 channels can optionally be equipped with a STUDER Audio remote control which not only allows control of individual channels but also master selection of common functions. In this manner, the operating mode and occupancy of the outputs can be controlled remotely on a block basis.

Tape deck The tape deck is mounted on a stable, cast chassis. The transport is capable of handling tapes from 1/4" to 2". The dimensions of the reel adapters, all tape guidance elements, the complete headblock assembly and the capstan motor shaft are adapted correspondingly. The tape deck is controlled by sophisticated electronic circuits. The plug-in modules are mounted in a pre-wired housing from which a number of interconnecting cables lead to the sensors, which supply the necessary control information. The wiring for the remote-control connectors and the remotely controlled elements also terminate in this housing. The power transistors mounted on the chassis, which amplify the processed signals to the level required by the loads, are also connected. All controls of the tape deck and the counter with the Zero-Locator function are conveniently arranged on the front panel.

Tape deck remote control To allow remote control and remote indication, all signal lines are terminated at the remote control connector located at the back panel. Either a simple remote control or the STUDER Autolocator System can be connected. The latter permits programming of complex control operations, such as: offset, rollback, loops, and storage of 10 locate addresses. A second connector allows external variation of the capstan motor speed.

Foundational text courtesy of Studer Literature.

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Studer A80VU 24 Track Recorder/Reproducer - Photo courtesy of Studer

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Studer A80 in the process of being assembled by a Studer engineer.

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The Studer Sisters. Left: Studer A80 MKIV, Right: Studer A80 MKII.

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Studer A80 MKI transport underbody and nice view of the card cage.

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Studer A80 2 Track 1/4" Tape Machine Transport

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Studer A80 2 Track 1/4" Tape Machine Transport

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Studer A80 MkII 24 Track Recorder/Reproducer - Photo courtesy of Chris Juried

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Studer A80VU MkIV 24 Track Recorder/Reproducer - Photo courtesy of Chris Juried

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