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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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The basically the same tubes. The 6E5P has own unit pins layout with heaters connected across the tube – very moronic in my view and it does not allow twisting the AC filament wires to the very end. The 6E6P has a common pins layout that most of west...
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[quote user="Johann"]Hi Romy,i want to use the 6E6P-DR (triode mode) as driver in my tube 45 amp.I use a D3A (triode mode) with Anode choke at 180V, 12mA. Grid 2 is connected via 50 Ohm resistor to anode. Grid 3 (pin 8) is connected to cathode.Th...
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[quote user="drdna"]Hi! I have got these 6E6P tubes from Georgia (in the former USSR, not the home of sweet potato pie). I have removed them all from their protective glass packaging, but I am unsure of how next to hook them up.[/quote]BT...
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Sorry, with me apparent alzheimer-inspired progressing dyslexia…. I’m keep confusing whatever is possible to confuse. What I meant to say was the 6E5P vs. 6E6P. The last one you have in DR version. They are essentially the same tubes with different p...
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I think it should be somewhere posted for my and perhaps for others future references. Here is the setting for testing Melquiades' single-stage tubes on Hickok 580/580A tube testers. To test the tube as a driver for a full Milq (two stages) set ...
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Romy,
I assume you plan to use one of these as the driver tube. Do you distinguish any difference in the sound between the two tubes? I am curious as I have been looking over a big pile of them and they respond quite differently regarding vibrat...
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[quote user="Romy the Cat"]
Anyhow, here is what I think I would do if I use the Alnic’s Preamp. Get rich the 7721 and 7788 and to put in there my 6E6P-DR in triode mode. The tube has very same pins and a full equivalent. Increase the plate voltag...
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Hi Romy,i want to use the 6E6P-DR (triode mode) as driver in my tube 45 amp.I use a D3A (triode mode) with Anode choke at 180V, 12mA. Grid 2 is connected via 50 Ohm resistor to anode. Grid 3 (pin 8) is connected to cathode.The 6E6P-DR (also 6E6P-E) a...
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[quote user="Johann"]Hi Romy,i want to use the 6E6P-DR (triode mode) as driver in my tube 45 amp.I use a D3A (triode mode) with Anode choke at 180V, 12mA. Grid 2 is connected via 50 Ohm resistor to anode. Grid 3 (pin 8) is connected to cathode.Th...
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Hi Romy,thank you for your answer. On weekend i will rebuild my amp for the 6E6P-DR. You are right, the tube datas shows that pin 8 is a screen. On D3A pin 8 is Grid 3 connected to screen.I will try it with pin 8 lifted and connected to ground. I hav...
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Hi Romy,i want to use the 6E6P-DR (triode mode) as driver in my tube 45 amp.I use a D3A (triode mode) with Anode choke at 180V, 12mA. Grid 2 is connected via 50 Ohm resistor to anode. Grid 3 (pin 8) is connected to cathode.The 6E6P-DR (also 6E6P-E) a...
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[quote user="montepilot"]How would modifying preamp affect sonic character other than just providing more gain. What's the advantage? Once such a modification is made are you restricted to using the 6E6P-DR tube only? Will it change the sound o...
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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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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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Ok, here's some calibrated sweeps. I ran the tetrodes in triode mode, with G2 strapped to plate through a 100 ohm resistor. First up is the western 6e6p.[img]http://www.hagtech.com/blog/images/6e6p.jpg[/img]I then built an adapter card th...
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[quote user="Romy the Cat"]
Anyhow, here is what I think I would do if I use the Alnic’s Preamp. Get rich the 7721 and 7788 and to put in there my 6E6P-DR in triode mode. The tube has very same pins and a full equivalent. Increase the plate voltag...
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[quote user="drdna"]Hi! I have got these 6E6P tubes from Georgia (in the former USSR, not the home of sweet potato pie). I have removed them all from their protective glass packaging, but I am unsure of how next to hook them up.[/quote]BT...
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[quote user="drdna"]As I had been looking at all these tubes I began to also inspect their interior construction. This will amuse you: one thing I would do is to hold the tube right up to my ear so the glass would be touching and thus mostly damped. ...
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Referring to my very recent acceptance of the 6E6P as a tetrode to drive the tweeter:
http://www.GoodSoundClub.com/TreeItem.aspx?PostID=5329
I decided to today to stick my beloved 7721/D3A in place of the 6E6P – thanks God they have the same pins l...
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Sorry, with me apparent alzheimer-inspired progressing dyslexia…. I’m keep confusing whatever is possible to confuse. What I meant to say was the 6E5P vs. 6E6P. The last one you have in DR version. They are essentially the same tubes with different p...
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I have today a local audio guy stopped by in my room and listened my playback. I have almost painful reaction from this listening session and could not wait when it will be over. The playback sounded very unpleasant, I mean so unpleasant that I w...
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[quote user="Romy the Cat"]Stonily they are very similar in my view with a very slight advantage of 6E6P in delicacy and softness. I do not know what you mean “respond differently regarding vibration.”[/quote]As I had been looking at all these tubes...
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[quote user="Wojtek"]has supposedly very nice Obbligato line of film HV caps . [/quote]
Thanks, the high nominals the have only 630V and they are larger than I would like to have. Does anyone know how those Obbligato sound in PS?
[quote user="hagte...
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Yes, I ma very enthusiastic to see what resume I will get. I would not use a single-stage amplifiers with low sensitively speaker. Low sensitively speaker and high sensitively speakers are different school of thinking in term of amplification. They h...
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I was playing lately with the Single-stage Melq and the DHT amp driving MF channel. It turned out that the Sun Audio VT-2A3 was very simple kit and it 2-3 hours to make it working. There is a lot in this kit that I do not like and some revisions will...
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I did have the Déjà vu feelings about it as I felt that we had this conversation in past. Here we go – it was a year ago.
http://www.goodsoundclub.com/GetPost.aspx?PostID=4291That post has both 6E5P-E and 6E5P datasheets and they are virtually the d...
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Panos, it is not about convincing me. My standing is absolutely irrelevant in this subject – I do not sell audio and do not making living by evaluation of SET amplifiers. I report what I have witnessed, nothing more. Sure, it is very possible that y...
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Hi Romy,thank you for your answer. On weekend i will rebuild my amp for the 6E6P-DR. You are right, the tube datas shows that pin 8 is a screen. On D3A pin 8 is Grid 3 connected to screen.I will try it with pin 8 lifted and connected to ground. I hav...
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[quote user="N-set"] I do have some serious concerns with respect to my design, the LF stability beeing the most important one (before we even approach talking about the Sound...if any); you may rememebr I was asking you about the stability and relia...
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[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...
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