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,Pre-Amplifier

Description:

Independent power source for Left & Right channel
High voltage power regulator on both low temperature staring and to high temperature closure
Starting voltage Increment extension for Vacuum tubes filament

Specifications:

During 100k ohm load test
-Frequency range between 20Hz - 100kHz responded less than 1% dB attenuate assessed in square wave response test
-Phase shift less than 2 (degree)

Features:

Used Iron-carbon electric resistance related material
”Sprague” oil capacitor installed in use