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Read the Post in new Window Read the Post in Threaded view  Post #2: 6E6P vs. D3A as driver. by Romy the Cat on 2011-07-14 
Browse the content of the threads in new Window  Thread: 6E6P-DR in triode mode in Melquiades Amplifier  3 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #18: The 7721/D3A as the tweeter diver. by Romy the Cat on 2007-09-19 
Browse the content of the threads in new Window  Thread: An amplifier for Tweeters in Audio Discussions  17 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #62: 5E6P vs. 7721/D3a as an amp for tweeters by Romy the Cat on 2008-03-04 
Browse the content of the threads in new Window  Thread: The one-stage Melquiades. in Melquiades Amplifier  74 Replies 
The 5E6P is the same as my 5E5P only with more or less military ambitions and with congenital “western” pins layout. It has more fragile specifications and more tight tolerance then 5E6P but it is the very same tube. There is very very very minor...

Read the Post in new Window Read the Post in Threaded view  Post #1: 6E6P-DR in triode mode by Johann on 2011-07-13 
Browse the content of the threads in new Window  Thread: 6E6P-DR in triode mode in Melquiades Amplifier  3 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #2: 6E6P vs. D3A as driver. by Romy the Cat on 2011-07-14 
Browse the content of the threads in new Window  Thread: 6E6P-DR in triode mode in Melquiades Amplifier  3 Replies 
[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...

Read the Post in new Window Read the Post in Threaded view  Post #3: 6E6P-DR by Johann on 2011-07-14 
Browse the content of the threads in new Window  Thread: 6E6P-DR in triode mode in Melquiades Amplifier  3 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #32: The Déjà vu feelings about 6E5P-E vs 6E5P by Romy the Cat on 2008-02-22 
Browse the content of the threads in new Window  Thread: The 6E5P tube data. in Melquiades Amplifier  44 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #18: The 7721/D3A as the tweeter diver. by Romy the Cat on 2007-09-19 
Browse the content of the threads in new Window  Thread: An amplifier for Tweeters in Audio Discussions  17 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #3: My fault.. by Welborne on 2017-04-29 
Browse the content of the threads in new Window  Thread: Melquiadising other amp? in Melquiades Amplifier  3 Replies 
Roman,Thanks for your prompt reply!May be my last wordings have misled you. I didnt mean I was interested in expetimenting gas tube biasing for D3a or another tube. Instead, I am rather interested in putting a gas tube biased 6e5p in front of a ss am...

Read the Post in new Window Read the Post in Threaded view  Post #28: Re: It is indeed! by Thorsten on 2004-12-08 
Browse the content of the threads in new Window  Thread: Where are our good phonostages? in Analog Playback  61 Replies 
hI bRIAN, [quote user="Brian Clark"]The 834P was a revelation for me, being a circuit that I would have dismissed as "old hat" (Feedback? 12AX7 cathode follower? Do me a favour!).[/quote] Me too, but you know me, i'm mainly pragmatic. The EAR 834P is...

Read the Post in new Window Read the Post in Threaded view  Post #22: It is indeed! by Brian Clark on 2004-12-08 
Browse the content of the threads in new Window  Thread: Where are our good phonostages? in Analog Playback  61 Replies 
The 834P was a revelation for me, being a circuit that I would have dismissed as "old hat" (Feedback? 12AX7 cathode follower? Do me a favour!). I like it so much that I intend to build an "enhanced" copy a la Thorsten/Carsten for reference (and enjoy...

Read the Post in new Window Read the Post in Threaded view  Post #25: “Do me a favour” corrector. by Romy the Cat on 2004-12-08 
Browse the content of the threads in new Window  Thread: Where are our good phonostages? in Analog Playback  61 Replies 
[quote user="Brian Clark"]I like it so much that I intend to build an "enhanced" copy a la Thorsten/Carsten for reference (and enjoyment!) before investigating the high Gm alternative (D3a + E55L or E810F )[/quote]Brian, It is hard to say. I use my b...

Read the Post in new Window Read the Post in Threaded view  Post #28: More Silbatone by guy sergeant on 2012-05-09 
Browse the content of the threads in new Window  Thread: High End 2012 in Germany in Audio News  36 Replies 
Besides the single driver Aporia (which I haven't heard) I don't think Silbatone has made any speakers. So they don't 'employ' GIP drivers.  I think GIP is a separate Japanese company who have just been invited to participate at these German show...

Read the Post in new Window Read the Post in Threaded view  Post #34: A commercial amp with 6E5P by Romy the Cat on 2008-12-31 
Browse the content of the threads in new Window  Thread: The 6E5P tube data. in Melquiades Amplifier  44 Replies 
Frank Blöhbaum, from Sweden I believe, have designed for Thorens a preamp that I think the first outside of Russia commercial use my 6E5P tube. http://www.6moons.com/audioreviews/thorens4/tep3800.html I do not know if Frank reads this site but if ...

Read the Post in new Window Read the Post in Threaded view  Post #1: Melquiadising other amp? by Welborne on 2017-04-29 
Browse the content of the threads in new Window  Thread: Melquiadising other amp? in Melquiades Amplifier  3 Replies 
Hello Roman,Hola from Hong Kong! How are you? Haven't been here for long time. I have a question at the back of my mine for long time, and it may have been covered elsewhete in your blog before. I am asking it here but do point me to the thread if it...

Read the Post in new Window Read the Post in Threaded view  Post #141: Vibrations? What do you with them? by Romy the Cat on 2009-01-27 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
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...

Read the Post in new Window Read the Post in Threaded view  Post #69: Hello and Fullrange Melquiades schematics question by Welborne on 2013-05-24 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
(sorry, this is supposed to be posted in the questions and answers colume but I must be so stupid to have it posted here and now I don't know how to move it there.)Hi Romy,How are you!  This is Welborne, from far across the ocean, Hong Kong. I have k...

Read the Post in new Window Read the Post in Threaded view  Post #12: Paranormal Pentodes by Brian Clark on 2004-10-03 
Browse the content of the threads in new Window  Thread: Where are our good phonostages? in Analog Playback  61 Replies 
[quote user="Romy the Cat"]Brain, C’mon, I was kidding about the “Electron Intensification Interface”! [/quote] Ah, really? So you were just winding us up! Now there's a surprise ;o) I was amassing a nice little stockpile of americum-241 too... ...

Read the Post in new Window Read the Post in Threaded view  Post #62: 5E6P vs. 7721/D3a as an amp for tweeters by Romy the Cat on 2008-03-04 
Browse the content of the threads in new Window  Thread: The one-stage Melquiades. in Melquiades Amplifier  74 Replies 
The 5E6P is the same as my 5E5P only with more or less military ambitions and with congenital “western” pins layout. It has more fragile specifications and more tight tolerance then 5E6P but it is the very same tube. There is very very very minor...

Read the Post in new Window Read the Post in Threaded view  Post #12: bias continued by cv on 2007-08-15 
Browse the content of the threads in new Window  Thread: The Melquiades bass channels: the coupling capacitor. in Melquiades Amplifier  11 Replies 
Hi Dima,Thanks for your comments; please forgive the chaos of what follows as I have to rush! Agreed on all counts - the dc bias point would need adjustment and monitoring; I supposse it depends on how stable the electricity is from the wall; anothe...
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