I have heard Sony and Tokin in the exactly same circuit except voltage and current are larger with Tokin. In my impression, they share the same quality, not something like the difference between 845 vs 300B, but the distortion figure can be more different depends on the load line, so one wants to find the sweet spot at first. The load line should have much more impact than which SIT is used. A good thing about Tokin is we can use it at much higher voltage and current.
VFET amp
Nelson, how similar is the schematic of your VFET amp in this forum to your SIT-3? At what voltage does your commercial version run? Thanks!
Nelson, how similar is the schematic of your VFET amp in this forum to your SIT-3? At what voltage does your commercial version run? Thanks!
SIT-3 is derived directly from DEFiSIT
few threads around, but certainly most funny is this one:
Most Greedy Boy, of them all... or (there is no) DEFiSIT of Papa's Koans
few threads around, but certainly most funny is this one:
Most Greedy Boy, of them all... or (there is no) DEFiSIT of Papa's Koans
My used matched THF-51N from Pras have arrived. Has anyone already figured out how to adapt the SissySIT circuit for them?
It is written several times already that SissySIT R.3 is already finished in prototype shape, made exactly with goal of using SIT with any Ugs value
As writing this, I'm in a middle of populating pcbs ..... in fact they're populated but I'm short for few power resistors and will get them as soon I remember to order them
so , you can expect funny pics of my Mighty Extrafamous T-Bed in several days, along with wigglygiggly graphs
Okay, Zen Mod... but can you tell us what you are saying about the SissySIT R.3?
😀
(I am joking!)
Okay, Zen Mod... but can you tell us what you are saying about the SissySIT R.3?
😀
(I am joking!)
sorry , forgot to put few smilies
Okay, Zen Mod... but can you tell us what you are saying about the SissySIT R.3?
😀
(I am joking!)
bummer, forgot to post these, too
Mighty ZM -
This is really great news and thanks for the pics. Hope the testing goes well and is smoke free. I will be following your work with great interest, and with much less understanding.
Nelson has also hinted that after the Sony V-Fever has subsided he'll release a project that can accommodate SITs of varying specifications.
So, we lucky few will have lots of options for unequaled fun.
This is really great news and thanks for the pics. Hope the testing goes well and is smoke free. I will be following your work with great interest, and with much less understanding.
Nelson has also hinted that after the Sony V-Fever has subsided he'll release a project that can accommodate SITs of varying specifications.
So, we lucky few will have lots of options for unequaled fun.
Thanks ZM and good luck with the testing! I did order my SITs before the LuDEF announcement though, so I’m a bit undecided between those two. We’ll see...
tnx Boyz 🙂
though, wakoo thing already been tested, pcb assembly and verification pretty much trivial thing
what's that burning smell??!?
though, wakoo thing already been tested, pcb assembly and verification pretty much trivial thing
what's that burning smell??!?
bummer, forgot to post these, too
Well, I certainly wasn't expecting the pictures as I was just joking, but not being one to look gift horses in the mouth... wow, nice pictures.
They do say a picture is worth a thousand words (but then, just who are "THEY"?).
And more importantly, what can you tell us about the SissySIT R3?
(still kidding! They are great pictures though... and thank you for keeping us informed.)
I was going to ask that!
🙂
This is the official last call for vfets and sits worldwide. Better they be hunted down and put in circuits to be appreciated, than collect dust and fade into obscurity.
🙂
This is the official last call for vfets and sits worldwide. Better they be hunted down and put in circuits to be appreciated, than collect dust and fade into obscurity.
Sissy amp for Sissies. Why decide between SSR3 and LuDEF? Make them both! 
SSR3 - Fugly!
Why so many 3 and 4 leg bugs? 😱😱😱
SSR3 - Fugly!
Why so many 3 and 4 leg bugs? 😱😱😱
well, can't make them as Pa - with fewer and fewer parts
so really have no choice, must go in other direction
and , still same number of parts singing, everything else is just auxiliary circuits
so really have no choice, must go in other direction
and , still same number of parts singing, everything else is just auxiliary circuits
