SBtron
Category: Components\ Crystals
Location: Seoul - Korea South
Manufacturer of pecl, filter, oscillator, crystal, saw, tcxo, ocxo, vco, vcxo, and resonators.
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Audio Aero
Category: Consumer Electronics\ Audio
Location: Cornebarrieu - France
CD, SACD, DAC and tube amplifiers using the power amplification concept called TRAC system (Tube Relay Amplification Concept).
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