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Ericsson DBH telephone from Brazil

Started by LM Ericsson, July 20, 2021, 12:41:06 PM

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LM Ericsson

I received this bakelite Ericsson telephone that was made in Brazil. Seller on ebay listed as an Ericsson Rijen from Netherlands, but the pictures showed otherwise. The bottom of the phone says Ericsson "IND BRAS" which stands for Industria Brasileira. The plug is a Telebras plug as well (4 pins with one turned 90 degrees). The bakelite is in phenomenal condition with the exception of some dirt, but am still cleaning it! On the side is CTMG melted in. CTMG stands for "Companhia TelefĂ´nica de Minhas Gerais". I believe this phone is from 1967. The pictures posted here are of the phone as received.
Regards,
-Grayson

LM Ericsson

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Regards,
-Grayson

LM Ericsson

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Regards,
-Grayson

Doug Rose

Really Nice find Grayson. Looks to be in wonderful condition. The engraved letters are really hard to find. It is a winner.....Doug
Kidphone

RB


Budavox

Looks the same with Indonesian version here, but we have terminal box instead of plug.

Here the common type is DBH 15X59-TP or DBH 15X88-3 and stamped under.

However I got mine without number metal plate, and the numbers on the dial is integrated with the dial itself.
Mine does not have stamped type or engraved Ericsson logo; but the diagram inside indicates the type is DBH 1405-08

LM Ericsson

They are very nice phones. I can't get mine to ring because is has a bad capacitor, though.
Regards,
-Grayson

Volker

#7
The phones look like the Ericsson DBH 1001 I bought at a flea market here in Sweden.

Ericsson DBH 1001 bakelite telephone

It is the predecessor model of the Ericsson Dialog, which was also sold in the USA. The design of the DBH 1001 was the basis for the Bell 302, which was built in the USA from 1937 to 1955. From this point of view, the DBH 1001 may be regarded as the model for all dial telephones in a plastic housing.

Very interesting. I did not know where everywhere in the world the DBH 1001 was used.

Volker

Volker

#8
The "official" page from Ericsson about the history of the DBH 1001:

https://www.ericsson.com/en/about-us/history/products/the-telephones/the-bakelite-telephone-1931

The design was mainly created by the Norwegian industrial designer Jean Heiberg (1884-1976):

https://www.ericsson.com/en/about-us/history/people/other-people/jean-heiberg-1884-1976

https://en.wikipedia.org/wiki/Jean_Heiberg

The DBH 1001, developed in 1931, seems to be the forefather of all dial telephones in plastic housings. The dial mechanism is also interesting. According to the photos, it is the same construction that was used in the successor model, the Ericsson Dialog. I had disassembled this dial mechanism almost completely to understand how it works and took many photos of the inner workings:

https://elektronikbasteln-pl7-de.translate.goog/nummernschalter-funktionsweise?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en

Thereby I finally understood how a number switch works in principle.
Volker