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Read the Post in new Window Read the Post in Threaded view  Post #3: Updated schematic by drdna on 2007-08-25 
Browse the content of the threads in new Window  Thread: Better chassis design for Melquiades. in Melquiades Amplifier  4 Replies 
Actually Romy, are you going to update the schematic to reflect the corrections? Adrian...

Read the Post in new Window Read the Post in Threaded view  Post #59: Melquiades Schematic Version 4.4 ...where is R7 and R8? by Tax on 2011-04-19 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
Tax wrote: "Sorry to ask, but where is R7 & R8 on version 4.4 of the attached schematic, is it a deliberate puzzle to test the Moron or a numbering error?"The CaT wrote:"It looks like R7 and R8 are not there. They use to be filter resisters for m...

Read the Post in new Window Read the Post in Threaded view  Post #18: About the MF Channel Schematic... by anthony on 2015-06-03 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
So, looking at the schematic below......I have a few more questions25 turn pot in the filament supply.  For the life of me I can't source a 25 turn pot.  The 10 turn Bourns 3590 is the closest I can find.  Do I need to keep looking for a more sensiti...

Read the Post in new Window Read the Post in Threaded view  Post #82: Anthony DSET Power Supply Schematic by anthony on 2017-01-16 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
To keep with Romy's spirit of sharing his work, I have attached a file of VER 1.0 of the DSET Power Supply.  There are quite a few differences to Romy's published schematics but it is basically the same beast.  You will notice a lot of power transfor...

Read the Post in new Window Read the Post in Threaded view  Post #18: University Dean schematic by skushino on 2013-09-27 
Browse the content of the threads in new Window  Thread: Good midbass is complicated, if not unobtainable. in Horn-Loaded Speakers  74 Replies 
Sure, Romy. The commercial product has both midrange and tweeter horns inside the mouth.  My plan is to use the bass horn on it's own, as a dedicated bass channel.  The plan appeals to me because there are no folds, among other reasons.  The expansio...

Read the Post in new Window Read the Post in Threaded view  Post #3: I wish I could find a Pioneer Exclusive 2404 Crossover Schematic by bluewolf on 2016-10-03 
Browse the content of the threads in new Window  Thread: Modifying TAD 2404 in Horn-Loaded Speakers  2 Replies 
Hi Romy, Many thanks for replying. I do not want to modify the two drivers. I agree with about all the BS from people selling speakers with TAD drivers. What I want to do is replace the crossover with one of higher grade parts and thereby also elimin...

Read the Post in new Window Read the Post in Threaded view  Post #33: 834P schematic 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 
Chirag, I have some other guys who were asking about the 834P schematic. I just got home and made a picture of my manual with the schematic in it. I do not know if it’s legal. It sort of none-commercial site and I did paid long time ago for my first...

Read the Post in new Window Read the Post in Threaded view  Post #35: Re: 834P schematic by guy sergeant on 2004-12-09 
Browse the content of the threads in new Window  Thread: Where are our good phonostages? in Analog Playback  61 Replies 
this is the first time I've seen the schematic of the 834p. Explains a lot. I always thought it sounded foggy and rose tinted with limited dynamic range. There seems to be alot of feedback in there. Having said that I've never found any of ...

Read the Post in new Window Read the Post in Threaded view  Post #20: Small whited out area on schematic by nos440 on 2008-12-05 
Browse the content of the threads in new Window  Thread: About EAR 834P Modifications in Analog Playback  45 Replies 
Romy,  New member around here great website! I have what is probably a silly question about the above EAR schematic. I've been in the planning stages of scratch building a phono stage and have been looking at a few designs and ju...

Read the Post in new Window Read the Post in Threaded view  Post #22: Nice Schematic by nos440 on 2008-12-05 
Browse the content of the threads in new Window  Thread: About EAR 834P Modifications in Analog Playback  45 Replies 
Thanks Funny I was just reading your thread that has this schematic... interesting stuff....

Read the Post in new Window Read the Post in Threaded view  Post #56: Schematic by Wellington on 2017-09-16 
Browse the content of the threads in new Window  Thread: Copper Mat on a Micro Seiki Gun Metal Platter in Analog Playback  122 Replies 
Measet, I will try to find a photo and the schematic as you requested, but it may be a while before I can locate them. Plus, we are still digging out from Hurricane Irma down here. As I recall, I beefed up the raw D.C. supply and then used an LM317 r...

Read the Post in new Window Read the Post in Threaded view  Post #56: Bidat schematic by tomand on 2021-03-28 
Browse the content of the threads in new Window  Thread: The Museatex Bidat pages. in Didital Things  57 Replies 
Hi does anybody have a BiDat schematic? I need it badly, I would be grateful for your help....

Read the Post in new Window Read the Post in Threaded view  Post #22: Nice Schematic by nos440 on 2008-12-05 
Browse the content of the threads in new Window  Thread: About EAR 834P Modifications in Analog Playback  45 Replies 
Thanks Funny I was just reading your thread that has this schematic... interesting stuff....

Read the Post in new Window Read the Post in Threaded view  Post #82: Anthony DSET Power Supply Schematic by anthony on 2017-01-16 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
To keep with Romy's spirit of sharing his work, I have attached a file of VER 1.0 of the DSET Power Supply.  There are quite a few differences to Romy's published schematics but it is basically the same beast.  You will notice a lot of power transfor...

Read the Post in new Window Read the Post in Threaded view  Post #18: About the MF Channel Schematic... by anthony on 2015-06-03 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
So, looking at the schematic below......I have a few more questions25 turn pot in the filament supply.  For the life of me I can't source a 25 turn pot.  The 10 turn Bourns 3590 is the closest I can find.  Do I need to keep looking for a more sensiti...

Read the Post in new Window Read the Post in Threaded view  Post #20: Small whited out area on schematic by nos440 on 2008-12-05 
Browse the content of the threads in new Window  Thread: About EAR 834P Modifications in Analog Playback  45 Replies 
Romy,  New member around here great website! I have what is probably a silly question about the above EAR schematic. I've been in the planning stages of scratch building a phono stage and have been looking at a few designs and ju...

Read the Post in new Window Read the Post in Threaded view  Post #20: The fuse in theMF Channel by anthony on 2015-06-05 
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:  The fuse.  You show a fuse on this schematic (that traces back to the B+ supply) but omit it on the 6-Channel schematic that I linked to earlier in the thread.  Do you use this fuse or have you removed i...

Read the Post in new Window Read the Post in Threaded view  Post #35: Modification to the Ear 834P by valves on 2009-11-24 
Browse the content of the threads in new Window  Thread: About EAR 834P Modifications in Analog Playback  45 Replies 
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 resistors R10 and R110...

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 #33: 834P schematic 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 
Chirag, I have some other guys who were asking about the 834P schematic. I just got home and made a picture of my manual with the schematic in it. I do not know if it’s legal. It sort of none-commercial site and I did paid long time ago for my first...

Read the Post in new Window Read the Post in Threaded view  Post #4: Re: 7788 - love the tube! by rafaroxlm on 2006-02-15 
Browse the content of the threads in new Window  Thread: 7788 tube mic pre design in Analog Playback  38 Replies 
Thanks for the comments Romy.  Would appreciate pointing out where the schematic is for the 7788 phono preamp or even better your friend´s 7788 mic preamp schematic.  I can use the phono stage circuit minus the RIAA as a starter and th...

Read the Post in new Window Read the Post in Threaded view  Post #205: Got a test croosover. by Romy the Cat on 2010-08-29 
Browse the content of the threads in new Window  Thread: Macondo’s Midbass Project – the grown up time. in Horn-Loaded Speakers  455 Replies 
After much consideration I desired to get my test crossover. I chose when for Velodyne SMS-1 that someone pitched at this site before. The unit has 6, 12, 18, 24, or 48 dB/octave low-pass filters that I need and runs up to 200Hz. I do not think that ...

Read the Post in new Window Read the Post in Threaded view  Post #1: In appreciation of Koshka by Tax on 2022-04-11 
Browse the content of the threads in new Window  Thread: In appreciation of Koshka in Melquiades Amplifier  2 Replies 
Finally done! A journey that took a total of 11 years after coming across this forum and seeing the Melquiades posts and schematic. Koshka has a beautiful body and will live on in my SET implementation of a 4 box solution. Here is the left channel po...

Read the Post in new Window Read the Post in Threaded view  Post #3: Updated schematic by drdna on 2007-08-25 
Browse the content of the threads in new Window  Thread: Better chassis design for Melquiades. in Melquiades Amplifier  4 Replies 
Actually Romy, are you going to update the schematic to reflect the corrections? Adrian...

Read the Post in new Window Read the Post in Threaded view  Post #59: Melquiades Schematic Version 4.4 ...where is R7 and R8? by Tax on 2011-04-19 
Browse the content of the threads in new Window  Thread: Bias help in Melquiades Amplifier  96 Replies 
Tax wrote: "Sorry to ask, but where is R7 & R8 on version 4.4 of the attached schematic, is it a deliberate puzzle to test the Moron or a numbering error?"The CaT wrote:"It looks like R7 and R8 are not there. They use to be filter resisters for m...

Read the Post in new Window Read the Post in Threaded view  Post #21: High-Pass Filter Help by skushino on 2013-10-07 
Browse the content of the threads in new Window  Thread: 5 Channel Version of Melquiades in Melquiades Amplifier  21 Replies 
Romy, would you explain / help me better understand how you implemented the HP filter in Melquiades?The schematic shows a series cap after the first tube stage (C3 and C4 in the schematic).  I think these are the first-order HP filters, correct?Quest...

Read the Post in new Window Read the Post in Threaded view  Post #177: Schem-o? by Paul S on 2010-06-22 
Browse the content of the threads in new Window  Thread: Initial thoughts about new/old Lamm ML2s in Audio Discussions  215 Replies 
One ironic thing about the ML2s is the contrast between the fantastic workmanship and the mostly average parts. Of course, the sockets are plain crappy, and I suffered plenty with them until I started using the dielectric grease. I have been too ...

Read the Post in new Window Read the Post in Threaded view  Post #19: More ansvers..... by Romy the Cat on 2015-06-04 
Browse the content of the threads in new Window  Thread: Planning my DSET in Melquiades Amplifier  186 Replies 
[quote user="anthony"] 25 turn pot in the filament supply.  For the life of me I can't source a 25 turn pot.  The 10 turn Bourns 3590 is the closest I can find.  Do I need to keep looking for a more sensitive pot or do you think 10 turn is managea...

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 #140: Shot too early... by anthony 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"]Hi Romy,So, six channels are now operational in the first DSET.  By up I mean the anode voltages on all tubes is about right and the currents are in the ballpark of where they need to be.  I am yet to check the DC Offset so hope...
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