April 1, 2024
Ampex Input Transformer 4580200-02
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Ampex Input Transformer 4580200-02 is a balanced-matching transformer with an impedance of 600 ohms. See further details from Ampex AG-600B manual below:Ampex plug-in Input TransformersFor recording from an unbalanced line, the dummy plugs (4030034-30) are used. These dummy plugs jumperpins 3 and 4, pins 6 and 7 and pins 2 and 8 (these two pins also connect to ground and the dummy plug shield).For balanced line recording, two input transformers are available to replace the dummy plugs.Transformer 4580200-01 is a balanced-bridging transformer with unit gain and an input impedance of 20Kohms.Transformer 4580200-02 is a balanced-matching transformer, which provides a 14dB gain and an inputimpedance of 600 ohms.On both transformers, pins 4 and 8 are the primary signal input, pins 3 and 2 are the output and pin 1 is the caseshield.(from the Ampex AG-600B user manual)
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