HF Receiver

 Hallicrafters mod. S-38A - U.S.A. 1946


Click to enlarge Dials - Click to enlarge Back panel - Click to enlarge Click to enlarge
Back panel - Click to enlarge Back panel - Click to enlarge Internal vision - Click to enlarge Internal vision - Click to enlarge
Internal vision - Click to enlarge

Below some images taken during the repair * Click to enlarge * Qui sotto alcune immagini riprese durante il restauro * Click per ingrandire *

Chassis - Click to enlarge Case - Click to enlarge Case - internal vision - Click to enlarge Back panel - Click to enlarge
Dials detail - Click to enlarge Chassis - detail - Click to enlarge Chassis - detail - Click to enlarge Chassis - Click to enlarge
Chassis - detail - Click to enlarge Chassis - detail - Click to enlarge Chassis - Click to enlarge Chassis - Internal vision - Click to enlarge
Chassis - Internal vision - Click to enlarge Chassis - Internal vision - Click to enlarge Internal vision - capacitor - Click to enlarge Internal vision - capacitor - Click to enlarge
Old Hallicrafters receivers pubblicity - Click to enlarge Detail - Click to enlarge Internal vision - Click to enlarge Manual and schematics - Click to enlarge

The S-38 was an Hallicrafter's entry level communications receiver introduced in 1946. It was priced at $39.50 but also if a basic receiver, it gived a very good job so the radio becomed very popular, that it was produced in several variations and remained in production until 60's begin. The first cabinet (from S-38 to S-38C models) was designed by the famous industrial stylist Raymond Lowey. The receiver circuit was a single conversion superetherodyne and works very well, but presents dangerous possibilities of shock hazards due to the transformerless power supply. In any case was possible insert a separator transformer between radio and the AC net.

* Four Frequency Bands covering from 0.54 to 30 Mhz
* 5 tubes used: 12SA7 - 12SK7 - 12SQ7 - 50L6GT - 35Z5GT
* Electrical bandspread with 0-100 scale
* Automatic noise limiter
* Standby switch for use with an trasmitter
* Headphone terminals
* Iron case

Click here to download the user manual and schematics

L'S-38 era un modello base di ricevitore della Hallicrafters introdotto nel 1946. Il suo prezzo era di 38,5 $ ma anche se era un ricevitore a buon mercato diede cosi' buoni risultati che divenne molto popolare, fu realizzato in diverse varianti e rimase in produzione fino all'inizio degli anni 60. Il primo tipo di mobile (dal modello S-38 al S-38C) fu disegnato dal famoso stilista industriale Raymond Lowey. Il circuito del ricevitore era una supereterodina a singola conversione e lavorava molto bene, ma presentava pericolose probabilita' di scosse elettriche dovute alla mancanza del trasformatore di alimentazione. Comunque era possibile inserire un trasformatore separatore tra la radio e la rete elettrica.

Copertura di frequenza in quattro bande da 0 .54 to 30 Mhz
5 valvole usate: 12SA7 - 12SK7 - 12SQ7 - 50L6GT - 35Z5GT
Allargatore di banda con scala 0-100
Limitatore di disturbi automatico
Interruttore "Standby" per l'utilizzo con un trasmettitore
Presa per cuffia
Mobiletto metallico

Click qui per scaricare il manuale con gli schemi


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