Have never used a CCS before despite members swearing by them.
Hooked up a CCS on the anode of one of my simple common cathode linestages.
Using a SV83 as the CCS. OK maybe inefficient but not worried about that. Getting a nice stable 190V from the CCS.
Very nice indeed.
Bass amongst other things significantly improved.
Never had much success using 6N1P's but now it really shines with the CCS on the plate.
Also replaced the cathode resistor/cap bypass with some yellow leds. Got a perfect 1.85V on both cathodes.
😀
Hooked up a CCS on the anode of one of my simple common cathode linestages.
Using a SV83 as the CCS. OK maybe inefficient but not worried about that. Getting a nice stable 190V from the CCS.
Very nice indeed.
Bass amongst other things significantly improved.
Never had much success using 6N1P's but now it really shines with the CCS on the plate.
Also replaced the cathode resistor/cap bypass with some yellow leds. Got a perfect 1.85V on both cathodes.
😀
Congrats!
Try a CCS on some "worthless tee vee toobs" as well and you'll hear the magic genie come out of the bottle 😎
Cheers!
Try a CCS on some "worthless tee vee toobs" as well and you'll hear the magic genie come out of the bottle 😎
Cheers!
Thxs SY/Geek.
Trying a variety of music and really liking this.
I had an issue with humming before thinking the transformer was damaged, but it seems to have cleared up using the CCS. Strange.
Now to try with some different tubes😀
But the lady of the house wants to go out😡
Well an excuse to enjoy my classic alfa romeo and hear those sweet weber carbs singing. 😀
Trying a variety of music and really liking this.
I had an issue with humming before thinking the transformer was damaged, but it seems to have cleared up using the CCS. Strange.
Now to try with some different tubes😀
But the lady of the house wants to go out😡
Well an excuse to enjoy my classic alfa romeo and hear those sweet weber carbs singing. 😀
Using a CCS will dramatically improve the power supply rejection, so that may be why you have less hum.
QQ
mu stage
Looking at this article above I see he takes the output of the gain stage between the cathode of the CCS penthode and RK2 (V2's cathode resistor) at the point where the cap is.
I am taking it off from the point below the cathode resistor.
What difference would this make?
So far I'm getting good results. (took the CCS design from Pete Millets low mu amp).
mu stage
Looking at this article above I see he takes the output of the gain stage between the cathode of the CCS penthode and RK2 (V2's cathode resistor) at the point where the cap is.
I am taking it off from the point below the cathode resistor.
What difference would this make?
So far I'm getting good results. (took the CCS design from Pete Millets low mu amp).
It depends on what you are driving. BTW I did always prefer the plate output. Give solid state CCS a try, you will never come back.
Gianluca
Gianluca
So I'm assuming we take the output from the plate or above the cathode resistor depending on how hard it is to drive?
I think the cathode point has a much lower impedance, so is preferable.
My amp OnRyoku 845SE does this.
My amp OnRyoku 845SE does this.
I'm not sure about what makes the difference between anode CCS and Mu-Stage. Is it that in CCS the output is taken from the anode of the lower tube, while in Mu-Stage the output is taken from the cathode or source of the upper device?
Completely different circuits (though they both provide high impedance anode loads)- if your copy of Valve Amplifiers has arrived, they are both dissected in great detail.
Something to look forward to!
Planes here are flying even slower after Christmas, unfortunately.
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