Hi
I am desperate for some help with 12b4 and psu design, I am on a mac and therefore unable to use Duncan amps PSU calculator. So guys I am humbly asking for some help in order to have the optimum B+ before a C4S.
As I am building this from the ground up I have only a lundahl LL1651 (42Ω/500v, .43A, 4X 0.1Ω/6.6v, 3.1A) and some bottle head C4S's. I need to build a suitable PSU with the Lundahl's specifications.
I have poured over every available schematic here and on google, however without the availability of PSU calculator, I am unable with my experience to create a suitable PSU supply and subsequently the overall schematic. I have not yet found someone using this transformer for this preamp. I am having a hard time sleeping, with of the schematics constantly on my mind.
As a matter of interest, is it possible to create a 12b4 preamp that is fully balanced?
I have thought long and hard for not wanting to appear as some sort of freeloader before posting this. With all of the experience of the people here I am hoping that someone is willing to give me a hand in creating my first 12b4 line stage.
Thank you for your time
Greg
Attached is the Transformer details:
I am desperate for some help with 12b4 and psu design, I am on a mac and therefore unable to use Duncan amps PSU calculator. So guys I am humbly asking for some help in order to have the optimum B+ before a C4S.
As I am building this from the ground up I have only a lundahl LL1651 (42Ω/500v, .43A, 4X 0.1Ω/6.6v, 3.1A) and some bottle head C4S's. I need to build a suitable PSU with the Lundahl's specifications.
I have poured over every available schematic here and on google, however without the availability of PSU calculator, I am unable with my experience to create a suitable PSU supply and subsequently the overall schematic. I have not yet found someone using this transformer for this preamp. I am having a hard time sleeping, with of the schematics constantly on my mind.
As a matter of interest, is it possible to create a 12b4 preamp that is fully balanced?
I have thought long and hard for not wanting to appear as some sort of freeloader before posting this. With all of the experience of the people here I am hoping that someone is willing to give me a hand in creating my first 12b4 line stage.
Thank you for your time
Greg
Attached is the Transformer details: