Rohde & Schwarz EZGN BN 4503 Mic Preamp 1958

Schallpegelmesser EZGN BN 4503

Sound Pressure Meter
Comes with its original tube microphone and a excellent EF 804, with a massive mic cable :)
This is a mic preamp with very high gain.

I can makle a demo video or soundclips, if you like,
fully original, no replaced parts
Excellent build quality !

Its design approach is quite interesting:
The first tube stage is based on an EF804S that's actually located inside the microphone to ensure an ultra-short signal path.
Further down we have a quintet of EF40s, two interstage transformers (Tr 1, Tr 2) and another one on the output (Tr 3).

There are some infos online, but feel free to ask me anything

Overseas shipping will be expensive, this will be a 25 kg parcel (52 lbs).