Cool, you can broadcast your LP stuff directly from the turntablehave a pair of 100W MW xmitters in shed, PP 4CX250
gonna make MS prepre with them
I might be wrong but is this a Steeplejack with a different FE?
So something like an upgraded Steepleguy...it is very diffent 4R load behaviour, so maybe its not so simple...
Anyway congrats once again, looks like another good one
this one is made before Scryer and Steeplejack
so, if anything, Steeplejack is crippled Plethora of Pinjatas
Hello ZM,
For some time I am contemplating about replacing my aleph js with something different and lately the story of the electricity price getting higher also put me to think, my js draw 200w each and most of the time I don’t go over 1w.
Looking at all variations you did on xa252(different transistors in the os) and the PoP I noticed that even if it’s not having the highest power(the PoP runs at only 23v) it’s gets the lowest thd.
The mosfets in the os are cheap and easy to find so I was thinking to give a try to the os only and drive it directly with my balanced preamp(an iron pre with less than 50r output impedance per phase).
Is it possible to connect 2 output stages directly to the preamp, one to the - side and one to the + side?
I ask because I never seen something similar yet.
For some time I am contemplating about replacing my aleph js with something different and lately the story of the electricity price getting higher also put me to think, my js draw 200w each and most of the time I don’t go over 1w.
Looking at all variations you did on xa252(different transistors in the os) and the PoP I noticed that even if it’s not having the highest power(the PoP runs at only 23v) it’s gets the lowest thd.
The mosfets in the os are cheap and easy to find so I was thinking to give a try to the os only and drive it directly with my balanced preamp(an iron pre with less than 50r output impedance per phase).
Is it possible to connect 2 output stages directly to the preamp, one to the - side and one to the + side?
I ask because I never seen something similar yet.
quite possible, well ,yes, why not
open dedicated thread, so we can chat there and draw exact schematic
it'll be piece of cake; of course, you'll need to manage your own pcb for OS
though, if I find it easy enough (to edit existing ones) and time and energy, maybe I'll make it for you and then you'll need just to order them at your favorite pcb factory
open dedicated thread, so we can chat there and draw exact schematic
it'll be piece of cake; of course, you'll need to manage your own pcb for OS
though, if I find it easy enough (to edit existing ones) and time and energy, maybe I'll make it for you and then you'll need just to order them at your favorite pcb factory
Having the pcbs drawn by you would be magnificent but unfortunately I don’t use the standard mounting holes in the heatsinks, I think I have 15cm between the holes. I will try to draw them and eventually post in the in the right thread when time comes and if someone else doesn’t take it ahead of me
Searching for the attached photo here on the forum I found that I was talking since 2013 about wanting to try a similar approach(some kind of balanced power follower) but I was so lazy and my alephs sounded so good that I am still at the same point but now my new preamp makes my hands itchy again
Searching for the attached photo here on the forum I found that I was talking since 2013 about wanting to try a similar approach(some kind of balanced power follower) but I was so lazy and my alephs sounded so good that I am still at the same point but now my new preamp makes my hands itchy again
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