Are these ELAZ 55A Fuzes with an anti-handling/anti-disturbance feature?

[millsbomber]

Hi Millsbomber,I’ll add a brief comment regarding your specimens:Regarding the impact rod: In L.Dv 4200 (1943), the component listed as "Din St 70" features an M14 thread. However, the technical drawing and text in the manual do not show the second, smaller thread—the one that allows for the attachment of an external diaphragm switch. (Although the impact rod has a male thread, and the switch also has a male thread, a connecting nut likely bridged the two. This was necessary to position the switch relative to the edge of the rod, ensuring it wouldn't be sheared off upon impact...)This represents a shift in interpretation. It makes sense that the impact rod was designed with greater functional versatility...As for the visual layout of the fuze: I noticed that two components—likely "impact contact 1" and "impact contact 2"—are missing; they probably broke off over time or didn't survive various relocations. That said, it in no way diminishes the exceptional nature of your specimen!!Otherwise, it serves as an excellent educational aid—it reveals the study materials they had access to, which in turn explains their level of understanding regarding how these fuzes functioned...In my view, it is top-tier quality; it would be a real pleasure to teach or explain concepts using such resources!

Hi Millsbomber, and everyone else who contributed—thank you for your time and for taking these photos.
Akon

its such a shame Madbomber is not with us any more he showed me on his Ipad a program of how fuses worked all his work was lost as no one except him knew the pass word.

 

[AKON_]

its such a shame Madbomber is not with us any more he showed me on his Ipad a program of how fuses worked all his work was lost as no one except him knew the pass word.

It’s a paradox of the modern age. Shrouds may not have pockets, but our phones are full of digital wealth and memories, and the key to them often leaves with us.
Akon