Conception et réalisation d'un micro à tube basé sur le Neumann M49

je ne trouve pas que reguler l'alime 6.3v pose des problemes a mon oreille

Dont worry i have all the version For the Round Body B, C just ask for it, even the M50B round, that it is just too much pcb , I have both B, C square also , the issue is that the psu pcb is only working for the C version wich is not very picky about hummy-Supply not even sure about LM supply style either , i am working on making another one specially for Filament Bias B version all passive. Last Thing i need to work out as the coming M269 is fixed bias and the supply will work for both.

the capsule are K47-M7 type as for tuning the stock value K bias 2.2K, and 100K plate of the self biased c version get very very close to the spot as 52V for the plate and 1.55V for grid Bias for the 5840 , I also built a B version but i need to redo the power supply for this one as for the M269 wich will be a b version it did not work hum free ,
both installing a 1M pot i was able to tune the bias on spot .
Let me know,

All version are available so please do ask , the only thing is that the current pcb supply will support the c version.

I am not even sure if LM317 Style regulation will be enough in this b version.

This is going to be called Choke Time ,

Dany,

As tu testé avec succès l'utilisation du 6,3V régulé pour polariser la grille ???