Telefunken TN 750 Noise Reduction System

This Telefunken TN 750 is a noise reduction system with High-Com noise reduction, it was first sold by Telefunken in 1979 and discontinued 2 years later in 1981.

The features of the TN 750 include.

Level meters used on the Telefunken TN 750 noise reduction system are generic digital peak reading meters.

The High Com system (as used in the Telefunken TN 750) works as a broadband 2:1:2 compander, achieving almost 15 dB of noise reduction for low and up to 20 dB for higher frequencies, while avoiding most of the acoustic problems observed with other high compression broadband companders. The 19kHz multiplex pilot slgnal present in FM stereo broadcasts can cause false triggering of the noise reduction system. The switchable MPX filter of the TN 750 filters out the pilot signal, and assuring proper Dolby processing of FM stereo programs.