History of the manufacturer
Walbert Manufacturing Company; Chicago, IL
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Both will display your name after an officer has activated your content, and will be displayed under «Further details ...» plus the text also in the forum.
| Name: | Walbert Manufacturing Company; Chicago, IL (USA) |
| Brand: |
 |
| Abbreviation: | walbert |
| Summary: |
Walbert Manufacturing Company; 923 Wrightwood Avenue, Chicago, IL. |
| History: |
Walbert Manufacturing; - Trade name Isofarad
|
Some models:
| Country | Year | Name | 1st Tube | Notes |
|---|---|---|---|---|
| USA | 27 | Isofarad 26 | ||
| USA | 27 | Isofarad 26PT | ||
| USA | 27 | Isofarad 47T | ||
| USA | 26 | Isofarad 5 | Three dials (primary tuning control knobs). | |
| USA | 26 | Isofarad 6 [200$] | Two dials (primary tuning control knobs) | |
| USA | 26 | Isofarad 6 [180$] | 4 dials (primary tuning control knobs). | |
| USA | 26 | Isofarad 7 | Two dials (primary tuning control knobs). | |
| USA | 26 | Isofarad [Chassis, 125$] | Three dials (primary tuning control knobs). | |
| USA | 26 | Isofarad [Chassis, 165$] | 4 dials (primary tuning control knobs). | |
| USA | 26 | Isofarad [Kit] | Three dials (primary tuning control knobs) | |
| USA | 25 | Isofarad Jr [150$] | Three dials (primary tuning control knobs). | |
| USA | 25 | Isofarad Jr [200$] | Three dials (primary tuning control knobs). |
[rmxhdet-en]
Further details for this manufacturer by the members (rmfiorg):
Radio News for October 1925; page 504
Radio News for October 1925; page 504
Radio Broadcast, Jan. 1926, p. 417
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