M49C circuit details / questions

[geareyes]

Dear Wulf,

Thank you so much for your contribution.

Simply incredible !!!!

Best wishes,
Mike

 

[hop.sing]

The third article is about the creation of the MS2 valve that had to be created especially for the M49/M50 by the small company Hiller in Hamburg, because the big valve-producing companies were unable to fullfil the task at the time.

I hope you find the articles informative or interesting but I´d be happy if they just raise a smile,

Best wishes from Bremen,
Wulf

Really great information in those articles, thank you.
By the way, I own and use a Hiller m69 small membrane microphone with the msc2 tube installed and have a backup tube assembly with another msc2 for that mic and both tubes work still within or close to their specifications, a little noisy for very quite sources but totally usable for something like a strummed acoustic guitar.
70 years after they where built, incredible...