high com noise reduction system

3-06 — elektor march 1981 the High Corn noise reduction system High Corn technical specifications: Frequency range: Distortion: Signal/noise ratio: noise reduction at 100 kHz: at 3 kHz: at 15 kHz: DIN-A: Input sensitivity DIN recording: socket recording: DIN playback: socket playback: output voltage DIN recording: socket recording: DIN and socket playback: 20 ... 18000 Hz (+0, —3 dB) 0,2% at 1 kHz 80 dB (DIN input) 85 dB (socket input) 15 dB 20 dB 25 dB 20 dB 0.6 mV across 6 kS2 200 mV across 25 k52 130 mV across 79 kS2 200nmV across 100 kS2 1 mV/kS2 600 mV (5k6 output impedance) 0-1.5 V (5k6 output impedance) the High Com noise reduction system The previous issue of Elektor included a general discussion on noise reduction systems and the problems involved for the home constructor. Featured in the article was the Telefunken High Corn System. The present article is a continuation of the above and covers the constructional details of a complete noise reduction system for the ele...