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- Users: rodentmacbeastie
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Do you guys use anything to keep the Solder Fumes out of your face?
I work with many hazardous products. Solder is no different to anything that is bad for you. If you are thinking it is only minor and won't kill you, you may be right. However, it could greatly affect the quality of your life. Just using a fan is no good unless you have air exchange out a...- rodentmacbeastie
- Post #33
- Forum: DIY (Do-It-Yourself) Discussions
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DIY Topload CD "weight" or "puck" HELP!!!
I have built a DIY CD transport and all I am missing before listening is a weight or puck/donut to keep the disc in place. All suggestions welcome.- rodentmacbeastie
- Thread
- Replies: 3
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Would you be able to feed an IRF610 with a LM317 in the buffer? I have some IRF610 from my D1 I/V stage left over znd wondered if they would sound better?- rodentmacbeastie
- Post #330
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
I am still awating my replacement H-PS-1 board from Tubecad. I am wondering if one of these PS kits is enough to power two boards? I should get another H-PS-1 board right? Any suggestions for a transformer?- rodentmacbeastie
- Post #329
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Yah, but smashing in Canada is a very big no no. I do keep it in a copper foil sleeve I made. This is also why my DIY Box'O'Goodies HTPC is going to be copper shielded on every surface... Shielding in both directions is good for my mental health.- rodentmacbeastie
- Post #316
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
I am sorry to spoil the Christmas cheer.- rodentmacbeastie
- Post #314
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Quote: Originally Posted by digger945 I'm gonna get you a list of the resistor values I have, but first I just wanted to say that I had no idea... ummm I don't know what to say really. Can you move her here to where you are? How hard is it in Canada? If and when the ID thing goes...- rodentmacbeastie
- Post #313
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Quote: Originally Posted by digger945 Yea I meant to say that I got his BOM and looked at it, and he had all of the values correct, but some of them were beside the wrong part places. R15 through 19 were mixed up a bit, but that is in relation to my/his amp, and I am unsure if these...- rodentmacbeastie
- Post #309
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
The PRP resistors that Fierce used don't come in some values he listed in his BOM. So I switched the 2R to a 5R, the 20R to a 22R, the 300R to a 330R. Will there be any major change with these, or should I seek out the exact values?- rodentmacbeastie
- Post #307
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
I am going with Multicap and instead of .47uF/400v like Fierce, I was thinking 1uF/100V. How much difference is it going to make between the 100v/200v/400v versions? I was thinking that the 100V will do fine and anything higher is unneccesary. I don't know why Freak put a 400V cap where he could...- rodentmacbeastie
- Post #301
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
What about other output devices than the LM317? Could you use some JFETs like the 2SK170? It is good to about 30v I think so it would be fine with the 24V/2 and even 48/2 for 24V at the JFET. I don't know what else would have to be done?- rodentmacbeastie
- Post #298
- Forum: DIY (Do-It-Yourself) Discussions
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Juli@ Hiss after modding
I have a Juli@ and this is not normal. Sounds like you pooched it.- rodentmacbeastie
- Post #2
- Forum: Computer Audio
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Twisted Pear Audio Opus DAC
OK, I own a Julia too and if you have single ended inputs on your headamp and balanced output configuration on the Juli@ you are only getting half the signal. The proper way would be to switch the outputs to SE on the Juli@ so you could get a properly summed SE channel. This will have nothing to...- rodentmacbeastie
- Post #787
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
It uses Nelson Pass's balanced supersymmetric design with each balanced channel(+/-) having 4 IRF610 mosfets working in pairs. diyAudio Forums - Pass D1 I/V Stage PCB - Page 1- rodentmacbeastie
- Post #297
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
OK, so all I need to do to run 12SX7GT is adjust the resistor values from 180 to 220, the 75K to 82K and make sure all of the caps are 50V or higher. The PS is the next thing. The one that John offers is max 25.2V, but what is limiting it? If the device cannot handle the 48V, could I just change...- rodentmacbeastie
- Post #295
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
If I use the FM 1000uF 50V for the coupling caps that I have and the HV LM reg I could be covered in both scenarios. The only difference will be a couple of resistors and the octal adapters which can be made from an octal socket soldered to the base of a broken noval tube and then glued in...- rodentmacbeastie
- Post #293
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Quote: Originally Posted by digger945 OK, rodent, so this will be just a 24V 6GM8 amp then. So we don't really need to build it with all the 50V caps and such. So are we ordering the higher voltage parts for the future build of the 12SX7 amp? ...and if so I have no idea what values the...- rodentmacbeastie
- Post #290
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Quote: Originally Posted by looser101 The output of the Aikido like all single ended amps has an output that is (for sake of illustration) say B+/2, so 12Volts in the case of the 24V Aikido. In this case the headphone driver would see 12v on one side and ground (0volts) on the other...- rodentmacbeastie
- Post #289
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Quote: Originally Posted by digger945 OK, one more ultra critical question, Were you thinking of using this 24V aikido to do a 12SX7 amp in the future, or did you have plans for a totally new amp?..or did you just want to try the 6GM8 at 48V? I just thought of it, the 6GM8 and the...- rodentmacbeastie
- Post #286
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Quote: Originally Posted by digger945 Before I comment on the fierce aikido BOM, do you have the newer pcb's with the dual places for 317 reg or mosfets?..or the ones that have just the AOI silkscreen for regs only? Yes I have some extra stuff you should order anyways but just wanted...- rodentmacbeastie
- Post #279
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
OK, forget about the truly balanced circuit. I will simply build two normal 24V boards. I am wondering if the tubecad linear PS has enough juice for two boards or should I get a second? I am buying most parts from sonicraft. They have a 20% sale for a couple more days and 50% off Jupiter beeswax...- rodentmacbeastie
- Post #277
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Balanced Aikido I see here that it looks all caps are present. The other article I mentioned he states that "carefully selected parts" would be needed.- rodentmacbeastie
- Post #275
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Did Fierce put BG NX 1000uF 25V caps in C4 and C11? The manual calls for a 35V cap in C11 right? And yes, I don't know why we would need a low pass filter unless your source is noisy. If the DAC is already low pass filtered, the only new HF noise should be from the Aikido's PS which is...- rodentmacbeastie
- Post #273
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Whoa, that is some crazy s$@t that just went on with my last post. It turned into two posts with a quote? I did not do any of that, creepy.- rodentmacbeastie
- Post #269
- Forum: DIY (Do-It-Yourself) Discussions
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Aikido 24V headamp
Quote: Originally Posted by rodentmacbeastie To be certain, which output caps can I remove and which can be smaller? If you can tell me the C# from the schematic it would be very helpful. Again, I am new to this and want to be sure. In this scenario I remember reading somewhere John...- rodentmacbeastie
- Post #268
- Forum: DIY (Do-It-Yourself) Discussions