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Autophon AG, CH - Solothurn

VHF - Receiver E46

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überarbeitet am 17.10.2010

Single conversion; ZF 4,3 MHz

Analog dial

AM, FM

27 - 101 MHz

Sensitivity 1,5 - 3,5 uV

Selectivity -6 dB
+/- 20 kHz / +/- 40 kHz / +/- 75 kHz

Bedienungsanleitung

In parallel to their E52 / E44 receivers, Autophon developed a VHF - receiver; because of the use of the VHF range for military tactical communications was still quite far in the future, only a small test series of this receiver has been made on behalf of the Airforce / Anti-Aircraft troops.

The front panel is divided in two sections by the horizontal linear dial of the turret tuning arrangement.
Above the dial, You find from the left hand the coaxial antenna connector and the sockets for connecting longwire antenna and earth, then the station clock, and the signal strength meter. This can be switched to indicate the heaters and plate / B+ voltages. At the right upper corner, You find the mains socket, the mains voltage selector and mains switch and some fuses.
Underneath the frequency dial, You find the rotary band switch operating the turret tuner - find the corresponding dial in the dial window - and at the right hand the main tuning knob with a mechanical blocking arrangement. Next to this one the switch for the two different IF bandwidths of +/- 20 and +/- 75 kHz.
In a row of controls below, You find from the left the volume control ("Lautstärke" or "Puissance"), the noise limitetr switch, speaker and headphone jacks, the AGC/RF gain control, the BFO control for CW reception, the tone and the AM/FM reception mode switch.

In 1947, only a small preliminary series of eleven receivers of this set has been produced, only four of them remained with the Signals Comp. 20

further reading:
d: das Fernmeldematerial der Schweizer Armee, 7. Folge, R. J. Ritter
d: www.radiomuseum.org

© Martin Bösch 25.8.2007