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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="DA"]1.How and where to make ground connection to the chassis (signal and power supply and between them)2.What are the test jacks near the 6c33c for (bais..)? In the photos there seems to be a resistor connected to one test jackand ground...
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Brain, C’mon, I was kidding about the “Electron Intensification Interface”! There is nothing in this phonocorrector then a correct selection of tubes, thier proper (well almost proper) use and selection of the specific topological decisions that sold...
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Potentiometers:
Paul S wrote:"...I could not get the current below 390 mA, even though the pots still turn freely
... How good are these pots? Do they actually have "stops", where they won't turn any further? Again, I ask because it...
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[quote user="floobydust"] One of the reasons I no longer use a tube tester. They make a measurement at a specific target operating point(s). You don't really know what it is, so what are the chances they will be close to your actual circuit opera...
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[quote user="Paul S"]You have said that there are no "good" 6N6Ps; but are some physically constructed better than others?[/quote]
Nope it was not what I said. I said the all 6N6P are equal, at least among those that I have seen and there are no rea...
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I can’t say anything about YO-186. It looks like it is fine
and the bias voltage or plate current did not move since I started to use it. I
do not know how YO-186 edges however, it might be possible that she loose the cathode
emission while holdin...
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[quote user="hagtech"]I have not tried this tube yet. It might push the limits of the tester. The 6.3V heater current supply is nominally rated at 5 amps. It might be ok to push it to 6.6 amps. I have to think about this, make...
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It is sucks to live with Russians Tubes. It is particular sucks to live with 6C33C. They are all deferent when they new, they age very ungracefully and differently.
The life with Super Melquiades, where I use 6x6C33C driving individual channe...
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Somewhere in 1997-88 I bought a hundred 6C33C. I believe during those years the where more expensive then now and I paid around $7-8 per tube. Over the years burning the 6C33C in pair of VK-60 (8 tubes), two pair of Lamm ML2 (ML2), ML2 with Melquiade...
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Those damn Russkies always threw surprises. Using in Melq the Russian-made tubes, probably very few the most remarkable tubes they ever made, the life defiantly threw some hi-fi astonishments.
The people who follow my saga with Melq know that I do n...
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[quote user="N-set"]BTW, how stable 6E5P is? I'm asking as I was contemplating biasing the output by the voltage drop on 6E5P's plate choke (DCR is say around 1k),with only some minimal autobias on the output. The drawback is that any drift in th...
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Thanks for the rejoinder, including the corrections and tips, Romy.I well remember Lamm saying that we should junk our ML2s now because the parts are "worn out". While that does not cause me to think he does not know what he is doing it natural...
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Adrian, as a purely practical observation, I just re-read your examples of the format you suggest, and I have to say I would need a good deal more information than that before I could figure out enough of what was going on with the componen...
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[quote user="anthony"]Do you have a
“final version” of the schematic anywhere? [/quote] I think that the one you
have might be recognized as final. The Rev2 was without DHT in MF and Rev3 was
with it. I did not do anything else with the amp af...
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[quote user="Paul S"] I heard back from Lamms about the relay pulses. They suggested I bias the amps again and then Lamms went silent when that didn't work. But the problem disappeared when I got around to replacing the 12AX7s that came w...
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[quote user="Romy the Cat"]What are my plans for 2011? I have a few. I am sure that I will be working with fine refinement of Macondo in the new room. I look forward to review the Macondo Fundamental Channel, will it be my new 18-cell or not I do...
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[quote
user="anthony"]My preferred source is a Phasure NOS1a G3 dac.
The thing has no discernible sound of it's own. It outputs 1.25VRMS SE
and I run it at -6dB because it needs a little attenuation to sound its best
which means 0.625VRMS. I d...
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