Author Topic: German Phone Found  (Read 168 times)

Offline Fabius

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German Phone Found
« on: March 20, 2017, 02:27:41 PM »
Found on eBay: Made by Telefonbau & Normalzeit in Frankfurt Germany in 1952. Special export version of TN Maingau 46 without grounding key. Dial is a Merk 2147.

T&N web site:

http://www.gvit.de/firmen/tn/geschichte


Tom Vaughn
La Porte, Indiana
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ATCA #765
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Offline dsk

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Re: German Phone Found
« Reply #1 on: March 20, 2017, 03:44:24 PM »
I believe it is pretty close, or equal to this one: http://tinyurl.com/kteqgx6.

The diagram shows a typical German phone. As mot of our European phones this might have some problems with the transmitter, and a ringer with high load.  No bias spring so it is a pretty simple circuit compared to e.g. W.E. 302.
Still it will probably work on US POTS, most PABX's but probably not so well on an ATA.

If you have to modify it  a capacitor or resistor in series with the ringer. (The existing capacitor and resistor is a part of a dial spark /noise filter)

A capacitor in the anti side tone winding may make it suitable for using a transmitter e.g. from a WE500.


The diagram:
« Last Edit: March 20, 2017, 03:55:05 PM by dsk »

I have even got a regular New York number :-) 646 570 1796

Offline Fabius

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Re: German Phone Found
« Reply #2 on: March 20, 2017, 03:47:34 PM »
I believe it is pretty close, or equal to this one: http://tinyurl.com/kteqgx6.

Looks like the same phone. Thanks for the link. Paid $33 plus shipping.
« Last Edit: March 20, 2017, 03:50:38 PM by Fabius »
Tom Vaughn
La Porte, Indiana
ATCA Past President
ATCA #765
C*NET 1+ 821-9905

Offline Jim S.

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Re: German Phone Found
« Reply #3 on: March 20, 2017, 04:26:35 PM »
Looks like the same phone. Thanks for the link. Paid $33 plus shipping.

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