South-Korean OEM Manufacturer Seoum was the company that the Lenco R 50 developed and produced in 1976 and 1977. When they arrived in Burgdorf they went through their final check where it got its Lenco sticker on the rear side of the unit.


Swiss distributor ExLibris sold it for CHF 580.—

Top view

Rectifier and regulation

AM RF, IF and demod

 FM IF demod and stereo decoder

Bottom view

Bottom view

Bottom view

Bottom view

ALPS FM Frontend

Bottom view

RIAA Pre-Amplifier

Bottom view

Power Amplifier

Bottom view

Block Diagram

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Last Update: 13.10.2023