|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
Further looking at where I would like to take the new 6-chennal version of the Super Milq I am contemplating a new revision of my bass channel output transformer. Currently I have Jack Elliano’s made 450mA, large, single section LF transformer that b...
|
|
I already wrote a few times at my site about 6C18C. Search if you are interested.
http://www.GoodSoundClub.com/TreeItem.aspx?PostID=2292
If you use the 6C33C for amplification or regulation then you would hardly avoid attention to 6C18C. It w...
|
|
[quote user="Romy the Cat"]I think it is about right. The 6C33C for upper base has 100K
biasing resistor and 20K to ground in Lpad. That would make ~60Hz. This high
pass that unload the LF from the horns that it can’t handle is very important
as y...
|
|
[quote user="Cosmos"] Anyway, as the description on our site on second paragraph says, the third 6C33 located at the back, is used as the pass element of the regulator (controlled by solid state circuitry) providing 220V with 100uV of random noise &a...
|
|
KOTriode. One of the reasons why I advance the idea of using 6C33C for sub 100Hz bass is because it is very easy to say objectively if it is enough power. You see, when you use 845 for instance the tube might jumps in and out if A2. Since it is D...
|
|
In the thread GM70 vs. 6C33C two year back I have written that the only tube that I would like to trey in Milq besides 6C33C would be YO-186.
I am not sure that it might be a right direction or even interesting direction but I picked yesterday a par...
|
|
[quote
user="anthony"]Hi Romy,
So it is time to think about the bass output
transformer in my DSET. My bass channel will be 8 x 25W/8565-00 each side
set in a sealed box and will cover the frequency range below say 100Hz.
These drivers can be ...
|
|
[quote user="darkmoebius"] I would never just jump in and attempt to build the Melq (or any other amp) without months of studying the design … [/quote]
Good motivations. To simplify everything: the Melquiades was at attempt to make two stages, capac...
|
|
It is nice to see the de-centresation of audio manufacturing. Formerly US, UK, Germany, France, a few Scandinavians and off the wall Japanese were making high-end audio. Today the lead positions in interesting high-end audio have moved to Poland...
|
|
Yes, Jessie, but in case you decide to go for DSET, would it be multi-channel Melquiades or anything else, then your consideration for type and topology of the lower bass would greatly dictate requirements for your DSET. If your lower bass channels r...
|
|
Hi Romy,
I just want to add my experience I had last year with a transformer based (actually it was an autoformer based) "passive" preamp. I thought that this could be the final solution in my preamp quest. Alas, it was not the case.&nbs...
|
|
[quote user="drdna"] It is NOT that better tubes have no vibration. Instead, the tubes that sound best to me seem to have a sort of springy sound, like the sound of a water drop or the sound of the tabla drum being struck. [/quote]
Interesting. My f...
|
|
[quote user="jessie.dazzle"] One did; in reviewing the L2 preamp, John Atkinson (Stereophile) wrote:"...The absolute polarity was preserved from both sets of outputs with the front-panel switch set to "0 degrees," confirming that the XLR jacks ar...
|
|
[quote user="Romy the Cat"]Output transformer. Here is
what the thing become complicated. Of you drive ultra-low impedance with step
down transformer then your secondary turns will decrease. They primary will
have whatever they have for all case b...
|
|
I am always curious about those silly lines.The 230V 165mA point for the LF sections does not look so bad to me... maybe a bit of expansion effect, which could be good for counteracting some evil within the LF drivers.If I understand right,...
|
|
Running the fully closed Super Milq for a few days I noted some amassing qualities that took the HF performance of Super Melquiades even further then Melquiades. This quality consists of a complete absent of any king of glitz and very atypical for th...
|
|
- and a very important point - about "matching" the 6C33C halves. I never thought of that, which is funny since I use the 6C33Cs myself and can't find actual matches anywhere (except for a pound of flesh, from VL, of course). And, as you note, the ...
|
|
Maybe use +/- same design (with boosted/own PS, if necessary), but fuse the 6C33C plates together for 3 dB, or double-double for 6 dB. Might be closest thing to a known quantity.Best regards,Paul S
...
|
|
[quote user="cv"] Consider a triode connected 13E1. 95W dissipation, will probably work beautifully with the existing OPT if you adjust the gap down and if you can rewire your arrays to present a somewhat higher impedance.Something like 400V-450V / 2...
|
|
To anyone contemplating the use of Teflon sockets as pictured and described by me in the post at this link:http://www.goodsoundclub.com/Forums/ShowPost.aspx?PageIndex=10&postID=15499#15499DON'T DO IT.These sockets cannot deal with the heat genera...
|
|
If you read my post at:
http://www.romythecat.com/GetPost.aspx?PostID=4235Then you are generally informed about the history of the 6C33C but here is another wonderful and uncommon illustration. It is reportedly a guidance system part of Russian crui...
|
|
[quote user="Paragon"] Romy,any information out there for a set of Power / Audio output Trans/ for a Single-Ended 6336B Monoblock project? Thanks, The Paragons [/quote] The 6336B is twin triode, I have seen some peoples is it but I personally have ...
|
|
Since renewing all tubes in both ML2s, over the period of about 3-5 minutes, the V2 bias on one of the amps cylcles between .27 and .33VDC. Is this behavior indicitive of a defective 6C33C?jd*...
|
|
Nice job, KOT, and nice trace near clipping! It's always good to see a full, symetrical wave. Did you say you did or did not connect the halves of the 6C33C? Of course I ask because of the power you cite at clipping... Please remind me, what is t...
|
|
New here, but I thought I would continue my 5+ year search for another pair of these sockets. I have all the parts to build a 6C33C OTL using 4 tubes and would like to find another pair of these. I have one pair that I happened upon late one night ...
|
|
Here is an interesting article by Dmitry Nizhegorodov about his experiences to use 6C33C. (I do not know who Dmitry is) I disagree with Dmitry’s amplifier. Also, I very much disagree with his vision that an amplifier is juts a machinery where voltage...
|
|
Romy,I also liked these tubes even when new, and found that they improved a bit further with 100-200 hours burn-in (of course I did not oven-fry them.)If you still have those Herbie's Hal-O 60mm tube dampers that did nothing for your 6C33C, I suggest...
|
|
[quote user="hagtech"]Note the '63 has much higher gain. The horizontal spacing is basically "mu". Interestingly, the 6e6p has lower gain than both of these. To me, the curves are beautiful. Spacing is relatively constant, ind...
|
|
Haralanov, thank you for the info.More please! Is his a dedicated bass amp?What is the operating point and load?Why 6c33c? How reliable GU81 is?...
|
|
I never heard the Vacuumstate. A pair of 300B in the “differential SET” application… Hm, would it sound different then a regular 300B? Juts kidding… The last “SET tandem” that I head was with a pair of 6C33C in “differential SET” pushing 45W. The amp...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
0 |
|
 |
|
|
Total human visitors: |
43,091,167 |
|
|
|
|
|
|