Ingolf wrote:
I found a "source" but they want to have nearly 90€ for a copy and
postage ... It's a surplus trader, who wants to sell a complete unit and
not to motivate me to repair may old one.

That's a problem.

By they way I've no idea what to do with this 20Hz to 50kHz (!) receiver,
any hints?

If it works, you could listen to the Christmas broadcast of SAQ Grimeton!
Should be 5-9 where you are.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."