Braun TG 1020/4

Description

Essentially a larger version of the Braun TG-1000/4 that could accommodate 10.5 inch reels.

The preamps, bias circuitry electronics, transport control electronics and heads were made by Uher and are the same as found in the Uher Royal DeLuxe 10000.

The transport is incredibly smooth and quiet and it is best explained in the Braun brochure…
The TG 1000 features a three motor transport which is the smoothest on the market. The unique transport electronically regulates current to the torque motors, thus achieving extremely low tape tension variations. In fact there is just about zero tape tension at the capstan. And the capstan itself acts as a metering device, neither pulling nor pushing the tape across the heads as in most machines. Tape tension remains constant for both large and small hub reels and tension does not vary more than 10 g from a full two empty reel. Thus, there is no undue head wear from the high torque on an empty reel and no poor had contact often found with full reels. The high-performance of the Braun transport allows use of the thinnest tapes with complete safety, even in the high-speed wind and rewind operations. And high-speed (3300 ft in 90 seconds) is so smooth, the wound reel looks like it has been played at 7 1/2.
The capstan motor is one of the most sophisticated ever designed. It is a tiny DC brushless motor that operates on the Hall effect. The motor is driven by a DC amplifier that is incredibly stable over a wide range of voltage and temperature variations. Thus, tape speed is accurate and stable. Speed changes is accomplished by switching resistance values in the amplifier and the preset values can be modified easily if one wanted some odd speeds. It is also possible to make minor speed adjustments to correct for a tape that was recorded off speed.
3 motors (one brushless DC-servo motor, 2 AC-servo motors)
All functions relay controlled and solenoid actuated
Noisefree “pause” button for tape editing.