Polo DX-4

Object/Artifact

-

Radio Alpha

Image: Radio News, Sep 1931

Image: Radio News, Sep 1931

Name/Title

Polo DX-4

Description

Receiving Converter

Category

Receiving Converter

Made/Created

Manufacturer

Polo Engineering Laboratories

Date made

1931

Valuations

Notes

See text

General Notes

Note

Radio News, May 1931, p. 1030. Kit (with tubes or cabinet), $26.00 Wired (without tubes or cabinet), $31.00 References Brief description. Radio News, Sep 1931, p. 250.