The Lenco T 600 was part of the series 600. It was introduced in 1978. The FM part had 8  sensor controlled presets and a LED array as an indicator for the signal strength, a LED array for the ratio middle indicator and switchable 400 Hz oscillator (Dolby reference level) for the level calibration of an external recording device.

On the rear side it had connectors for a stereo Dolby FM adapter.

The tuner part was also used in the R 600 receiver.

Lenco T 600 Tuner

FM Frequency Range:

Distortion:

Sensitivity (26 dB S/N):

S/N Ratio (40 kHz Deviation):

Stereo Separation (1 kHz):

87.5 - 108 MHz

< 0.3 % Stereo

0.8 µV (75 Ω)

>70 dB (Mono)

45 dB

Lenco T 600 Inside top

Lenco T 600 side view

Lenco T 600 Rear side

Lenco T 600 Inside bottom

Many of the units failed the QC in Switzerland and needed repair before they could be sold. I was also in the Netherlands in February 1980 to check and fix more than 20 units for Naho BV - the distributor got them directly from South Korea - many of them needed some service !