question to all technician friends

[Qiaozhi]

Only have photos of this large detector. Also there are a book or report, don't know if contain plans or not, called Feuerwerker-Minenkampf in Nordafrika 1941-43. I want this!!! Is very possible that during Russian invasion much of these plans was confiscated by troops under special orders.

Look at the coil.
It can only be either a BFO or a PI.

[Geo]

Only have photos of this large detector. Also there are a book or report, don't know if contain plans or not, called Feuerwerker-Minenkampf in Nordafrika 1941-43. I want this!!! Is very possible that during Russian invasion much of these plans was confiscated by troops under special orders.

Hi Esteban . As i know we are looking for the same plan he he....
My regards

[okantex]

this is far away from ours

[Max]

Only have photos of this large detector. Also there are a book or report, don't know if contain plans or not, called Feuerwerker-Minenkampf in Nordafrika 1941-43. I want this!!! Is very possible that during Russian invasion much of these plans was confiscated by troops under special orders.

Hi Esteban,
I can't see any fixed RX unit. Don't know if it's the same detector type.
Maybe you mean that it used a large control box...that is often the choice of early detectors.

Best regards,
Max

[Esteban]

"Analizing" another pic I conclude the next (but I'm not very sure, but I compare with soldiers each other the detectorist):

[Max]

"Analizing" another pic I conclude the next (but I'm not very sure, but I compare with soldiers each other the detectorist):

Hi Esteban,
I think the same , watching the pic...seems a stand-alone unit with tx-rx in same box...or the like.
There are not any fixed external RX. Seems then BFOs of some kind. Probably micro-tubes het-like, working at some hundred kHz.

Best regards,
Max

[Esteban]

I think maybe is type balance bridge.