Hi Guys,
i changed my dual tubes to a Telefunken UF14.
Thanks so much Dan for your help with that!
There are just some little modifications with the Zayance PSU pcb and on the mic.
The only problem is the heat.
The bottom of the mic gets really hot after some minutes.
You can’t nearly touch it.
But for all, who wants to go with a UF14, it’s nearly the same circuit like on the VF14.
Will post pictures later, it’s too late.

Edit:
The heat seams a problem.
Has anyone a original U47 or something with a EF14 or other tubes.
How is the heat ?