MW.E.c. and E.U. a2 for operation

[Funksammler]

The pin configuration on the male portion of the cable is 180 degrees out from the umformer's female set up. The triangular alignment notches are out of phase. This cannot be changed, so a different cable is required.

LESSON: The cables male and female ends have different alignment notches. Carefully inspect both the radio and the umformer to see which cable works.

Some joker has just moved the blocking screw from the "E" to the "S" position. Just move it back to the "E" position where it belongs and your plug should fit.

.... and I would turn the cable on the plug 90 or 180 degrees, now it points downwards which is not very handy. Just loosen the two screws on the back of the plug, this allows you to rotate the cable gland....

regars,

Funksammler

[17thairborne]

With the pin moved from "S" to "E", the male end of the cable attaches nicely, and the 1-5 pins are in the 1-5 holes.

[17thairborne]

While you were typing, I was analyzing the problem and have it solved. I should have waited a few minutes before posting.

[17thairborne]

.... and I would turn the cable on the plug 90 or 180 degrees, now it points downwards which is not very handy. Just loosen the two screws on the back of the plug, this allows you to rotate the cable gland....

regars,

Funksammler

I have this configuration now, which is what you mean by pointing downward. The cable can only be rotated in increments of 120 degrees because of the notches in the cover and the bakelite pin plate

[17thairborne]

That is a E.U.a4 rather than a 2. This must have been very early in the production run of the E.U.a4 as they have removed contact number 2 from the contact strip rather than manufacture it without the contact. It looks to be in very good condition and it looks like it already has been serviced. I would be happy to try running this one without any work...

regards,

Funksammler

yes is does appear to be in nearly new condition.

[17thairborne]

Typical superb German engineering

[17thairborne]

It cannot be rotated because the two securing screws in the bakelite plate are in 180 degree configuration to the screw holes in the metal plug and the slots are in 120 degree phase. It is a fixed position.

[Funksammler]

Ah yes I see, you have a non-movable version of the plug. I guess that leaves you no choice but have it pointing down...

regards,

Funksammler

[17thairborne]

Two views of the Mw.E.c front

[17thairborne]

Case details

[17thairborne]

Case removed, Mw.E.c top and bottom

[17thairborne]

Sides with nice stamping

[17thairborne]

Rear with some details. Notice the different tube markings. Also a nut missing from position "11" I will have to trace that from the manual's schematics.

[17thairborne]

The complete set up. There was a connection from the z. Zender (to transmitter) that linked the Mw.E.c to a kasten Pz 20 or similar device into which the headset and throat mike would be connected.

[Funksammler]

The z. Sender connection goes to the transmitter (30 W.S.a or 80 W.S) and is not connected to the intercom. Only in command tanks would the headphone output be connected to the bordsprechanlage B via the box posted earlier: http://dev.wehrmacht-awards.com/foru...3&postcount=11 Note the yellow dots, this was used to ensure the polarity of the connection was correct.

However most Mw.E.c's would probably be in half tracks where they were not connected to an intercom.

regards,

Funksammler