Having become somewhat of a transformer addict, I was wandering about the viability of amp based on Karna philosophy, but using jfets and SiT components. Unsure of requirements for transformers as they are a new game for me.
http://nutshellhifi.com/Karna.gif
http://nutshellhifi.com/Karna.gif
less is more , and you're already shown what is less
if you're going L'Art pour L'Art , read Susumi Sakuma pages
to be more precise - it's hard (and foolish) to translate literally from sand to vacuum , and the other way around
if you're going L'Art pour L'Art , read Susumi Sakuma pages
to be more precise - it's hard (and foolish) to translate literally from sand to vacuum , and the other way around
if you're eager to play with iron , look at Donuts thread
edit: http://www.diyaudio.com/forums/pass-labs/169323-semisouth-donuts-2.html#post3438402
if you need more oomph , increase voltage , decrease Iq
it's , of course , possible to implement iron in input path , too
edit: http://www.diyaudio.com/forums/pass-labs/169323-semisouth-donuts-2.html#post3438402
if you need more oomph , increase voltage , decrease Iq
it's , of course , possible to implement iron in input path , too
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Have another clone to try first. Was trying to stay with small signal transformer types. I assume that it is the current levels that make SS and Iron a tough mix.
principle is what counts .... and changes needed to accommodate differences in part's nature
if you have highish current (as with sand) , then use CT choke , as in Donut (nothing new , btw)
as Papa show us with M2 - colorations from iron can be used for benefit and it adds some tasty syrup to benign and neutral character of used OS
so , if you are willing to explore that further , use iron in front of output stage , same as part of OS itself
what I meant in my first comment - if going sand route ,generally you'll need less stages than with vacuum ........ while speaking of Donuts - I'm just saying that choke is better for your/our needs than plain OPT ....... using what inductive storage can give you , but without relying on core itself to transfer every eenyweeny bit from primary to secondary
if you have highish current (as with sand) , then use CT choke , as in Donut (nothing new , btw)
as Papa show us with M2 - colorations from iron can be used for benefit and it adds some tasty syrup to benign and neutral character of used OS
so , if you are willing to explore that further , use iron in front of output stage , same as part of OS itself
what I meant in my first comment - if going sand route ,generally you'll need less stages than with vacuum ........ while speaking of Donuts - I'm just saying that choke is better for your/our needs than plain OPT ....... using what inductive storage can give you , but without relying on core itself to transfer every eenyweeny bit from primary to secondary
Gotcha. Was alwyas thinking two stage. Got some j109's, SS, SiT's. I will queue it up after M2. You are ironman, so ill head your advice. Stajo has not updated the Donut thread. I know he has the stuff, but apparently life is more interesting at the moment.
very true. guess i need to decide between this and 5/6 filar SiT version. THanks for the help. Ill update in time.
with 6-fillar , you can be closer to original F6 arrangement , feedback wise
do you have L meter ?
I'm interested - what's L of one Jensen's coil
maybe one day I go blind ....... and wind some 6-fillar in/on ferrite cups (they're sort of non-ct 600:600 repeaters also )
do you have L meter ?
I'm interested - what's L of one Jensen's coil
maybe one day I go blind ....... and wind some 6-fillar in/on ferrite cups (they're sort of non-ct 600:600 repeaters also )
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Due not have L meter. The 5 filar was Cinemag. Gonna try to get BudP to make 6 filar. Ill use 5 filar with the SiT's. Its hard to imagine it besting the Funny, but i am very interested, as it does haev the potential. Funny is just such a msucial amp. Trick of the mind, perhaps, but still wonderful. I am hoping the M2 clone is similar in nature.
not really
but , as I said , my question is not important enough , that you must go and buy one
I can always ask Papa , and he's certainly having L meter somewhere
I repeat - I simply forgot that Iskra repeater is also good for reference
but , as I said , my question is not important enough , that you must go and buy one
I can always ask Papa , and he's certainly having L meter somewhere
I repeat - I simply forgot that Iskra repeater is also good for reference
well ,Mighty ZM, as typical brainless Dodo , have one - old Russian black box with plenty of switches and LED display
still didn't figured for how many different measurement is made
still didn't figured for how many different measurement is made
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