Microtech Gefell UM70S repair

[electrog]

I have an early 90s Gefell UM70s in need of repair (low to no output, strange high frequency sweeping noise).

I'm in Germany and would have access to both Thiersch and Gefell for a repair. Does anybody have experience with one over the other?

Thanks!

 

[TillM]

Booth are great.
But Mr. Thiersch has so many work right now, last time he told me, a capsule repair he can start in sommer.
It doesn’t matter which you choose.

 

[timtom]

I can recommend both as well.