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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I occasionally read this thread, but I guess you're right and it would be fair to read it from the beggining. Will do !As a general rule and I guess it applies to everybody else, the playback of my system is better late at night although there are so...
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As I've said a couple of months ago, I got my APS 700i regenerator a few days ago... I didn't "audio-test" it so far but there will be plenty of time for that later. I've fired it up to see if it's workong properly and everything looks good so far. T...
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Lucian,
here is where the beauty of 7788 comes - max Gm with absolutely lowest noise ( the area where Russian tubes reportedly can hardly compete). What is particularly cool about 7788 that that are dead quiet one after another. I have near ten dif...
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[quote user="Romy the Cat"]
If the APS works as I described in the paragraph above then the buttery does not filter/buffer the source of ASP’s oscillator and amplifier. In this case I would like to get rid of the buttery and do not let the APS circ...
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Lucian,
If your system draws a steady 500W, do not use LC filtration and if you would like to buy 700 model then you might reconsider it and look at 1050 mode or 2000 model. The more load you have on this thing is the better result is, I perso...
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Hello,
While the question was addressed to Romy, may I be allowed to barge in :-)?...
A question before anything: do you feed the 7788 DC or AC on the filament?
Many tubes are perfectly able to oscillate mechanically on 1KHz--20KHz range, ...
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Hello first, as I am new on this site...
I have tried a number of high Gm pentode/triode tubes, including E55L and, of course, 7788. All are very linear when used as triodes, but do not bet on very low noise, if that is what you would be after. Th...
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Hello Romy,
Quite clearly, a high Gm device will have a higher voltage gain than a lower Gm (for pentodes, gain is Gm*Rload if single ended) and this is something we are after in a MC stage. Noise performance is crucial and below I am analyzing a ...
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