Hi lhquam,
I do not know how to tell about the stability, but yesterday it was turned on for straight 3 hours or more. For total 45W dissipation per side, the temperature was high but it was reasonable (how do I know?) for the heat sink size. I was afraid of blowing up the 2SK82 and I touched the heatsinks from time to time. So I have peace in my mind. With no bias the current stops and this is good I think.
@sorento
Thanks, but no way you can follow me because it is almost dead end 😛 😛
I have nothing to tell more than the pics. But people here are nice to help you I think.
I do not know how to tell about the stability, but yesterday it was turned on for straight 3 hours or more. For total 45W dissipation per side, the temperature was high but it was reasonable (how do I know?) for the heat sink size. I was afraid of blowing up the 2SK82 and I touched the heatsinks from time to time. So I have peace in my mind. With no bias the current stops and this is good I think.
@sorento
Thanks, but no way you can follow me because it is almost dead end 😛 😛
I have nothing to tell more than the pics. But people here are nice to help you I think.
maybe I expressed myself badly 😱 ..... I followed you but also everyone else with interest.
However, I admired your resourcefulness and it seems to me that you did very well
yesnope , they're all bstrds , just pretending as nice ,in public
the world is full of envious
Hi sorento,
Do you have 2Sk82 KE-33? I used this one and they worked fine for two channels. I also replaced IRFPO9240 from a bag and they worked as it is with the same Source resistors. Not perfect, but works as.. imagined. 🙂
I also have some 2SK180 and when you find some solution with this please share the results. 🙂
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Mighty ZM, I connected the output cap to other Source(alligator clip of course).
I was a little surprised at the very first note.
FET Source - I feel slightly more gain, a little more power, and a touch more feel of the high-frequency cymbal.
SIT Source - There is a little more sweetness and calmness. (to me at least..)
I like this variation, 😀😀 somewhat like UL - pentode connection of tube amp.
I would definitely put a switch for this - I am a mere changeable person!
Thank you for this tip!
It is a follower...as I understand. Does it change the phase? I am using the output from the DAC to the circuit. More than enough gain and volume, good thing about sensitive speakers. 🙄
I switched the polarity and am listening now.. 🙂 My brain screwed up...
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Calm down. You want to listen for a bit. There is a change of phase of Second harmonic distortion.🙂
OK.. I am listening through the favorite tunes now.🙂
After this kind of honeymoon, I think I can get a better picture of this sound.
You cannot fool the long hours listening.
But what a pleasant honeymoon this is. I am more inclined to single ended sound, tube or not, but this DEFiSIT is different from anything I experienced.
Respect to the one who created and shared this!
Hi generg. Thank you for your post. I have a practical DEF amp [Old Faithful]. It now uses my suggested schematic which I posted earlier in this thread. It works great. It is stable and sounds superb. I'll post it in the [Pass] DEF thread. DEF and DEFiSIT amps may benefit from its approach.
Best
Anton
SIT3 at California Audio Show was only on static display *sob*!
Guess I'll have to wait to hear it's spooky delights, or buy one.
Building is way beyond my low level capabilities.
However, XA25 was in two exhibits and sounded GREAT! Nice work, Mr. Pass.
Guess I'll have to wait to hear it's spooky delights, or buy one.
Building is way beyond my low level capabilities.
However, XA25 was in two exhibits and sounded GREAT! Nice work, Mr. Pass.
new arrivals - THF51-S , from watanabe.....-san
first batch of six , for buddy No.1
later expecting in a month or so to get the second batch of six , for buddy No.2
probably another day needed for finishing tidying up of my workshop , then slowly on testing them ....... first solo , then on T-Bed , in circuit
first batch of six , for buddy No.1
later expecting in a month or so to get the second batch of six , for buddy No.2
probably another day needed for finishing tidying up of my workshop , then slowly on testing them ....... first solo , then on T-Bed , in circuit
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Mighty Man.. I following you again.
Today I checked my friend's 2SK82 KE-33 and confirmed that it's possible again with IRFP9240. 🙂 0.6 ohms Source resistor for both channels, up to 1.65A, Vds 16V, 29V supply.
But I want to hear that THF51 in DEFiSIT someday, in higher voltage and current! I also sent some THF51s and others to a gentleman in Germany for his fun..
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if we are talking about same German Gentleman , he's right man to have fun with
I think so 🙂 Sony SITs are like tamed donkeys, and THF.... these are wild horses and need the right touch. I am happy with a donkey.. 😀😀
