autophon: E77 (E 77);

Thanks to Herr A. Küffer who has indicated that Autophon E77 receiver is actually military marking of the same radio E628.

J. Makivuoti

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According to R. J. Ritter, the Autophon E-77 has been exported to Spain and Colombia and has been used also by Swiss PTT (Post Telephone Telegraph authorities), it is the technically identical civilian version of the military model E-628.

Gemäss R. J. Ritter, Fernmeldeanlagen der Schweiz. Armee handelt es sich beim E77 um die baugleiche zivile Version des E-628, exportiert nach Spanien und Kolumbien und zivil eingesetzt bei den Schweizer PTT.

You might use the schematics already uploaded for the E-628, hope that helps Martin

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