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Read the Post in new Window Read the Post in Threaded view  Post #1: A resistor between screen and grid by Romy The Cat on 2005-10-20 
Browse the content of the threads in new Window  Thread: A resistor between screen and grid in Melquiades Amplifier  9 Replies 
I received a comment form people who reportedly well-familiar with using the high-frequency high gain tubes. They suggested me that the resistor between screen and grid (R23) might be eliminated and that would bring some benefits. It very much might ...

Read the Post in new Window Read the Post in Threaded view  Post #7: The Melquiades’ loading resistor. by Romy the Cat on 2007-10-13 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
[quote user="cb"] Also i stick a 30k resistor in R3 and the results are very good.  [/quote]R3 is Milq’s loading resistor and it hardly to do anything with amp itself. Milq has own input loading is floating on the bias chains  and it has a ...

Read the Post in new Window Read the Post in Threaded view  Post #60: Melquiades resistor question by DA on 2013-04-26 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
Finalizing parts ordering for full range Melquiades and I have one thing with is unclear to me,  the plate to grid resistor on the 6E5PIs   R23  50R is this correct ?There is another R23 in the driver power supply .http://www.goodsoundclub.com/PDF/Me...

Read the Post in new Window Read the Post in Threaded view  Post #94: 12.1k Resistor by anthony on 2017-03-04 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
Hi Romy,Minor question with hopefully a simple answer.In the DSET schematic you have a 12.1k resistor in the bias for channels B, C, D and F.  I have some nice 12k resistors here (not 12.1k) that I could use in those positions...can you see a problem...

Read the Post in new Window Read the Post in Threaded view  Post #18: Resistor ladder. by xandcg on 2017-06-17 
Browse the content of the threads in new Window  Thread: Shopping for DSD Converters? Here's One From the Lampizator.... in Audio News  18 Replies 
Amir,R2R Discrete, means it uses the good "old" resistor ladder instead of a DAC chip. There is more info here. But you can find more around the internet.Cheers....

Read the Post in new Window Read the Post in Threaded view  Post #8: One Mighty Big Resistor by Paul S on 2018-11-03 
Browse the content of the threads in new Window  Thread: The GoodSoundClub’s ‘Ultimate Audio Dildo Award’ in Audio News  10 Replies 
OK, I read the blurb.  Now that the cat's out of the bag, and we know it's just a resistor ladder, why not use... a resistor ladder?  Gotta hand it to those "MIT" guys, also I think there's room yet for upgrades.  How about a deluxe, super-limited, l...

Read the Post in new Window Read the Post in Threaded view  Post #60: The Super Milq’s input: electrical perspective. by Romy the Cat on 2007-11-24 
Browse the content of the threads in new Window  Thread: 6 Channel Version of Super Melquiades in Melquiades Amplifier  131 Replies 
[quote user="op.9"]Could you help me understand your biasing scheme with this version? I thought I understood the original Milq circuit - but the only channel that looks like that to me is the D channel. I don't get A and B at all! what is the 50 ohm...

Read the Post in new Window Read the Post in Threaded view  Post #185: Some explanations by Romy the Cat on 2020-07-27 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
I see, let me to explain how the this work all together the you will be able to make your own judgement. Let look at the functional purpose of the emails in there.   The R1 resistor is a loading resistor. This is understandable. It makes sense to kee...

Read the Post in new Window Read the Post in Threaded view  Post #16: The Cosecant correction. by Romy the Cat on 2008-09-29 
Browse the content of the threads in new Window  Thread: High Quality Music Server / CD player in Didital Things  169 Replies 
[quote user="Romy the Cat"] A few things that juts comes to might mind regarding the Cosecant. Gordon says that it is a Passive Multibit DAC with a single Shinko Tantulum resistor “because only a resistor can be a linear device over the entire audio ...

Read the Post in new Window Read the Post in Threaded view  Post #39: They will light up like a Christmas tree by anthony on 2015-07-02 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
Romy, thanks for the info on the chokes in the fullrange Milq.Today I have ordered more Milq parts this time for the power sequencing and bleed down.  I decided to go for the relay sequenced bleeders for all four power supplies and figured I would be...

Read the Post in new Window Read the Post in Threaded view  Post #1: A resistor between screen and grid by Romy The Cat on 2005-10-20 
Browse the content of the threads in new Window  Thread: A resistor between screen and grid in Melquiades Amplifier  9 Replies 
I received a comment form people who reportedly well-familiar with using the high-frequency high gain tubes. They suggested me that the resistor between screen and grid (R23) might be eliminated and that would bring some benefits. It very much might ...

Read the Post in new Window Read the Post in Threaded view  Post #113: Jk, actually it is not exactly accurate by Romy the Cat on 2008-01-24 
Browse the content of the threads in new Window  Thread: 6 Channel Version of Super Melquiades in Melquiades Amplifier  131 Replies 
[quote user="N-set"]just a minor tech remark (feel free to ignore): the big-ass elco is theoretically still well in the picture. 10uF will have 320Ohm@500Hz, which is a fraction of 20Ohm R+3mF elco.[/quote]Jk, actually it is not exactly accurate. As...

Read the Post in new Window Read the Post in Threaded view  Post #343: Driver tube and biasing by cv on 2009-06-17 
Browse the content of the threads in new Window  Thread: Single-stage Melquiades vs. DHT amps in Melquiades Amplifier  397 Replies 
AlloOn the matter of the DHT having a plate resistance of 500-700... you do realise that running the 6E5p with an unbypassed cathode resistor is giving you an effective Rp of about 12k, right? The formula is, IIRC, Rp + (mu+1)Rk.Given that 12k seems ...

Read the Post in new Window Read the Post in Threaded view  Post #36: To keep the Ear loaded. by Romy the Cat on 2009-11-24 
Browse the content of the threads in new Window  Thread: About EAR 834P Modifications in Analog Playback  45 Replies 
[quote user="valves"]Hello to everyone, am new to the sight.  Been reading for a while and decided to mod my 834.  I've had the unit since '96, purchased new from the local dealer.  I have noticed a few differences from the schematic, the 220K load r...

Read the Post in new Window Read the Post in Threaded view  Post #7: The Melquiades’ loading resistor. by Romy the Cat on 2007-10-13 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
[quote user="cb"] Also i stick a 30k resistor in R3 and the results are very good.  [/quote]R3 is Milq’s loading resistor and it hardly to do anything with amp itself. Milq has own input loading is floating on the bias chains  and it has a ...

Read the Post in new Window Read the Post in Threaded view  Post #4: Can't describe it exactly... by ml8 on 2007-03-24 
Browse the content of the threads in new Window  Thread: A resistor between screen and grid in Melquiades Amplifier  9 Replies 
...but resistor between screen grid and plate, to my hearing, makes sound slightly unnatural, especially in highs.But this may be not true in your case (i didn't try to use this resistor with 6E5P, only with other power tetrodes), so i think i'll sug...

Read the Post in new Window Read the Post in Threaded view  Post #8: One Mighty Big Resistor by Paul S on 2018-11-03 
Browse the content of the threads in new Window  Thread: The GoodSoundClub’s ‘Ultimate Audio Dildo Award’ in Audio News  10 Replies 
OK, I read the blurb.  Now that the cat's out of the bag, and we know it's just a resistor ladder, why not use... a resistor ladder?  Gotta hand it to those "MIT" guys, also I think there's room yet for upgrades.  How about a deluxe, super-limited, l...

Read the Post in new Window Read the Post in Threaded view  Post #61: Kind of irelevent. by Romy the Cat on 2013-04-26 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
Yes, Daniel, this resistor is somewhere between 30R and 100R, the value is not truly important. The purpose of the resistor is to slightly decouple the potentials of plate to grid, it cares no current and you might use 1/8W resistor or even less. BTW...

Read the Post in new Window Read the Post in Threaded view  Post #186: Fixed by anthony on 2020-07-28 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
Thanks Romy,It is now fixed.  I have left Channel B the same apart from adding a 390k positive bias resistor on the positive signal line (between C1 and R5) connected to the 14k resistor that also connects to Channel C and F.  A 402k would have been ...

Read the Post in new Window Read the Post in Threaded view  Post #297: Physical attributes of devices matter by drdna on 2020-03-17 
Browse the content of the threads in new Window  Thread: The last phonocorrector: “End of Life" Phonostage in Analog Playback  310 Replies 
Every resistor, capacitor, tube, etc. are just physical devices that are optimized to come a bit closer to an ideal device -- a wirewound resistor may represent an ideal resistor, but it has inductance, capacitance, and other electrical and physical ...

Read the Post in new Window Read the Post in Threaded view  Post #183: Play It Again, Sam by Romy the Cat on 2020-07-26 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
Anthony, I would recommend you go other direction. I very much assure that with over 7V on fist stage bias the channel is dead, it should be around 4V. Let see how to fix it.  I would certainly do not change neither 12.1kR resistor nor 402k resist...

Read the Post in new Window Read the Post in Threaded view  Post #161: It is all good. by Romy the Cat on 2019-02-03 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="anthony"]First was the issue with the 6e6p  for the HF Channel not being able to draw enough current.  I checked the bias and it was fine and the potentiometer allowed plenty of adjustment so I changed nothing in the circuit.  A new ...

Read the Post in new Window Read the Post in Threaded view  Post #142: So far so good... by Romy the Cat on 2019-01-03 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="anthony"]Thanks for your thoughts Romy.  Last night I roughly wired in some random crossovers….[/quote]I wrote a loooong replay to you after that post but my 2.5 yo son turned off my computer while I was posting it. Hate to rewrit...

Read the Post in new Window Read the Post in Threaded view  Post #9: Between S2 and OPT... by anthony on 2015-05-29 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="Romy the Cat"]   anthony wrote: Is the resistor in the Fundamentals Channel between the OPT and the S2?  Apart from this resistor you run the S2 without any components between it and the OPT. . Actually it is not a resistor connected...

Read the Post in new Window Read the Post in Threaded view  Post #91: Ok, you got me here. by Romy the Cat on 2018-04-14 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
Gintaras, this is funny as in my last post I meant to write that I might not remember correctly and you need to look in my old posts. I did not write it for whatever reasons but what you did was right. Whatever I wrote in my old post was correct. ...

Read the Post in new Window Read the Post in Threaded view  Post #2: Not really a DIY site by rowuk on 2021-02-13 
Browse the content of the threads in new Window  Thread: Could someone recommend a reasonably priced pot. in Audio Discussions  4 Replies 
That being said, many of us seem to move away from pots and go to either discrete resistor switches or discrete resistor matrix schemes.As far as pots go, Alps seems to have the "good enough" market cornered.If you look through the site, you will rea...

Read the Post in new Window Read the Post in Threaded view  Post #8: Grid current "absorbers" by ml8 on 2007-03-26 
Browse the content of the threads in new Window  Thread: A resistor between screen and grid in Melquiades Amplifier  9 Replies 
Romy, Big thanks for your answers. But i've got another question :)You mentioned gas regulator as grid current "absorber".Very good point, because personally i hate to use resistor as a grid leak.Instead of it i'll use choke - almost with any tube, i...

Read the Post in new Window Read the Post in Threaded view  Post #11: Bias by deemon on 2007-08-14 
Browse the content of the threads in new Window  Thread: The Melquiades bass channels: the coupling capacitor. in Melquiades Amplifier  11 Replies 
Hi all ! I thought about this resistor bias idea that Chris proposed , and found some some problems here . One of them discovered Chris himself - it is a big serial resistor in the grid chain , and it can cause not only HF rolloff ( it isn't a big pr...

Read the Post in new Window Read the Post in Threaded view  Post #30: Damn Tube Collectors by hagtech on 2008-01-17 
Browse the content of the threads in new Window  Thread: Gas voltage reference 0A2 tubes. in Melquiades Amplifier  42 Replies 
Wait a minute ... will a choke input work with a gas tube as a load?  The choke-rectified input is designed to work into a resistive type load, but basically acting itself as a voltage source, capable of psuedo regulation over a wide range of lo...

Read the Post in new Window Read the Post in Threaded view  Post #15: Bypass that sound card? The Cosecant DAC? by Romy the Cat on 2008-09-29 
Browse the content of the threads in new Window  Thread: High Quality Music Server / CD player in Didital Things  169 Replies 
Jessie, I have two comments/questions. Are you sure that using the USB you do not use the sound card? I am a software guy not a hardware guy and with my limited understanding I presume that an application that reads a file must talk to so kind of dr...
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