In autumn 1971 Lenco released the Lenco 900. The power amplifier was designed and produced by HEA Vienna using their ST 3040/16 module. The RIAA pre-amplifier was on board and could be switched between crystal and dynamic cartridges. The first series was built with the L 75 record player, later on it was re-placed by the L 78. Swiss distributor Ex Libris sold it for CHF 950.—.

The Lenco 950 was the version with built in FM Tuner with 4 pre-sets. Swiss distributor Ex Libris sold it for CHF 1’200.—.

Lenco 900 Mk I / L 75

Lenco 900 Mk II / L 78

Output power:

Distortion:

S/N ratio:

Frequency response:

Input sensitivity DIN socket:

2 x 15 W into 4 Ω

< 0.2 % @1 kHz, 2 x 15 W

55 dB

20 Hz - 30’000 Hz ± 1.5 dB

200 mV / 47 kΩ

Compact and solid built HEA St 3040 / 14 all silicon transistor amplifier module from 1972.

The onboard RIAA pre-amplifier was standard