Benutzer-Werkzeuge

Webseiten-Werkzeuge


en:e-603

Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

Link zu dieser Vergleichsansicht

Beide Seiten der vorigen Revision Vorhergehende Überarbeitung
en:e-603 [2018/10/31 18:12]
mb [Power Supply]
en:e-603 [2018/10/31 18:13] (aktuell)
mb [Technical Principle]
Zeile 46: Zeile 46:
 {{:​images:​e-603-autophon-e45-block.jpg?​direct&​600|}}\\ ​ {{:​images:​e-603-autophon-e45-block.jpg?​direct&​600|}}\\ ​
 The antenna signal has to pass two RF preamplifier stages ([[de:​D1F]]);​ it is converted to an [[IF]] of 1600 kHz in the mixer stage ([[de:​D1F]]). This is followed by two IF amplifier stages ([[de:​D1F]],​ [[de:​D1F]]). Then, the signal is demodulated ([[de:D1F]] and fed to the audio preamplifier ([[de:​D1F]]),​ it's output is sufficient for headphones operation. The audio final stage with two [[de:​DLL21]] in a push - pull arrangement and the speaker are located in the power supply cabinet.\\ ​ The antenna signal has to pass two RF preamplifier stages ([[de:​D1F]]);​ it is converted to an [[IF]] of 1600 kHz in the mixer stage ([[de:​D1F]]). This is followed by two IF amplifier stages ([[de:​D1F]],​ [[de:​D1F]]). Then, the signal is demodulated ([[de:D1F]] and fed to the audio preamplifier ([[de:​D1F]]),​ it's output is sufficient for headphones operation. The audio final stage with two [[de:​DLL21]] in a push - pull arrangement and the speaker are located in the power supply cabinet.\\ ​
-THe "Alarm Section",​ which acted as a selective call unit, with it's four [[D1F]] valves was removed from the receivers according to a technical direction from Feb. 1974.+THe "Alarm Section",​ which acted as a selective call unit, with it's four [[de:D1F]] valves was removed from the receivers according to a technical direction from Feb. 1974.
  
 ==== Valve setup ==== ==== Valve setup ====
en/e-603.txt · Zuletzt geändert: 2018/10/31 18:13 von mb