Geithain TMV2 Preamp Schematic - anyone care to comment..?

[colvan]

I'm now living in the former DDR, and picked up one of these. The unit is in pretty bad shape and thought I'd part out the input transformer for a DIY project.

Before I get the wrecking ball out, I thought I'd throw it to the brains trust and see if there's any worthy features or similarity with other known circuit designs..

Schematic attached below..


There's pics of the same preamp and discussion in these old threads:

http://www.groupdiy.com/index.php?topic=20687.0
http://www.groupdiy.com/index.php?topic=13817.0

 

[colvan]

TMV2 schematic_1.pdf

 

[colvan]

TMV2 schematic_2.pdf

 

[colvan]

TMV2 schematic_3.pdf

okay. appreciate any and all thoughts

 

[Conviction]

Bumping this old thread a little -

I would really appreciate comments too since I recently acquired one. It was cheap, so no biggie if it proves to be junk (stock).

Thanks for the schematic btw!

 

[kohntark]

Reviving this old thread. Also acquired one of these.

FYI: the circuit is 99% the same used in RFZ's V733 / V734 / V735 units.

https://www.audiomodellierer.de/RFZ...echnisches_Zentralamt_der_DDR_files/V_733.pdf

 

[jokeramik]

The TMV 2 was a transistor preamp for mics with unsymmetrical output.. The V 733 was a power amp for broadcasting.
The input design looks like the same like the TMV 2.
Bestregards