German metal detectors

[proscan]

Hi,

I am looking for the info on German minensuchgereates. Seems German engineers invented BFO metal detectors.

Does anyone have any schematics? I can exchange for other vintage materials (from 40's in English and Polish).

Anybody invested in this material:

http://cgi.ebay.de/Feuerwerker-Minensuchgeraete-1939-1945_W0QQitemZ6199742928QQcategoryZ25789QQrdZ1QQcm dZViewItem

Bit pricey as for 50 pages of Xerox copy.

Some interesting pictures attached.

Thanks in advance