1960's Extremely rare Germanium based Limiter by WSW (Austria wing of Siemens).  Fully recapped and in great working condition.    Begrenzer 601430S , Serial # 961405These limiters are incredible sounding.   Transparent in the sense that they can handle any kind of source material, yet have a unique sound.Simple Threshold/Makeup Gain/ Release settings.  Great metering.  Balanced In/Outs.A lot of time and money was spent refurbishing this unit by several top European techs.  These are plug- and play and impossible to find in this re-conditioned shape.  Please, no offers.p.s. I am currently selling two of these units. Please see my other auction.Good luck !