Lenco 668

In 1965 Lenco released the Lenco 668 amplifier. The electronics was designed and produced by HEA Vienna. It is based on their St 1/3b transistor amplifier. It used germanium transistors in the power stage and the small signal part was constructed with silicon transistors. It had a socket for a RIAA pre-amplifier VVSt101. Later in production it was re-named as STEREO 1600. The Lenco LAB 52 Stereo used the same amplifier modul.


Naho - the Dutch Lenco distributor - sold it as SV88. In Austria - under the DONAULAND label - it was sold as Studio 1000 stereo. HEA itself sold it as St 1/1.


There was also a FM-Stereo-Tuner St TU 1/1 as a separate unit available.

Lenco 668

Output power:

Distortion:

Frequency response:

Input sensitivity DIN sockets:

2 x 6 W into 5 Ω

< 1 %

40 Hz - 20’000 Hz ± 1.5 dB

200 mV

Compact and solid built HEA St 1/3b transistor amplifier module from 1965.

The one above is without a RIAA pre-amplifier

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Last Update: 08.03.2022

05.03.2022

- added more information to the VV 6


08.03.2022

- replaced the genuine document list