Low noise VLF pre-amp

In recent days there has been quite a lot of work on different VLF frequencies (as low as 970Hz) by amateurs trying to receive carriers and short messages at great range, including from Germany to the UK. In a recent posting DG4RBF gave details of his latest pre-amp. I have no idea if it does the job. The text is in German, so you have to translate if you want it in English. Use Google translate?

See

http://dg4rbf.lima-city.de/Ultra%20Low%20Noise%20AMP%20V1.7f%20_WebSeite.pdf