BTMC 2712 & 2713 Booster circuit fram Atwerp.

[dsk]

Here is my sketch of the circuit.
The circuit is pretty equal to many other phones from the same time-window.


Some pictures of my 2713 phone will come when I have restored it.

Here is a picture of Matilo's phone:


  from this thread: http://www.classicrotaryphones.com/forum/index.php?topic=15956.msg165252#msg165252

[dsk]

Now it is on my wall in good working order :-)