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Russ White  
#21 Posted : Tuesday, November 16, 2010 12:45:07 PM(UTC)
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My refusing to enter into subjective speak does not mean I don't believe there are no desirable effects, nor that I can't hear them. Far from it. It just means I will just let you discover them for yourselves without the taint of my suggestion. :)

Edited by user Tuesday, November 16, 2010 12:45:59 PM(UTC)  | Reason: Not specified

LeonvB  
#22 Posted : Tuesday, November 16, 2010 2:08:50 PM(UTC)
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Back to objective numbers then. :)
How about the price? And will there be plenty available?
Being 1.2 and 3.3V I take it there will be 2 versions, or will it be a kit?
Brian Donegan  
#23 Posted : Tuesday, November 16, 2010 2:18:50 PM(UTC)
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Still working out pricing, but they will be cheaper than what is available currently.

They have customizable shunt current using a single TH resistor. I am thinking I will include a few differnt values in the generic kit, and a set specifically for the Buffalo with the desired Rs included.

I am building these things by hand, so I hope to have plenty, or at least be able to crank them out in time for Buffalo deliveries. I plan to start "production" tomorrow night.
Russ White  
#24 Posted : Tuesday, November 16, 2010 2:20:32 PM(UTC)
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Unfortunately the noise is below what I can measure. So I hope someone with better gear than mine might undertake to measure the noise.

The output impedance is just a few tens of millohms. Better than the linear regs, and that was actually my most important design goal.

The Trident page should have pricing on it.
Dingo  
#25 Posted : Tuesday, November 16, 2010 7:06:16 PM(UTC)
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Unfortunately indeed Applause
christensenleif@msn.com  
#26 Posted : Wednesday, November 17, 2010 3:10:02 AM(UTC)
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Russ White wrote:
Unfortunately the noise is below what I can measure. So I hope someone with better gear than mine might undertake to measure the noise.

The output impedance is just a few tens of millohms. Better than the linear regs, and that was actually my most important design goal.

The Trident page should have pricing on it.


the "Trident page" is not active yet, hence no price info
best
Leif
Russ White  
#27 Posted : Wednesday, November 17, 2010 4:56:01 AM(UTC)
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Patience. :)
christensenleif@msn.com  
#28 Posted : Wednesday, November 17, 2010 5:19:43 AM(UTC)
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my strongest feature :d/ ha-ha
best
Leif
Beefy  
#29 Posted : Wednesday, November 17, 2010 10:10:25 AM(UTC)
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For those that use the screw terminals on their Buffalo, what is the physical clearance like?
barrows  
#30 Posted : Wednesday, November 17, 2010 10:25:55 AM(UTC)
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Thank you, Russ and Brian! I am quite excited to try these with my B-II. I read in another thread that adding 3 Tridents will raise the power requirements of the B-II to ~475 mA, is this about correct? I need to reset the available current from my DIY shun pre-reg to suit. Also, what would be the ideal input voltage, 5.0 or 5.5, or somewhere in between?
Brian Donegan  
#31 Posted : Wednesday, November 17, 2010 10:55:39 AM(UTC)
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Beefy wrote:
For those that use the screw terminals on their Buffalo, what is the physical clearance like?


Do you mean standoffs?
LeonvB  
#32 Posted : Wednesday, November 17, 2010 11:04:34 AM(UTC)
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Quote:
Unfortunately the noise is below what I can measure.

So what can you measure? At least that gives us a number that actually tells us something (admitted it's not much).
Russ White  
#33 Posted : Wednesday, November 17, 2010 11:18:15 AM(UTC)
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Really you would need a good analyzer to measure something like this. I don't have anything like that. The noise floor of my PC analyzer is too high to pick it up.

Edited by user Wednesday, November 17, 2010 11:19:28 AM(UTC)  | Reason: Not specified

Beefy  
#34 Posted : Thursday, November 18, 2010 8:23:58 AM(UTC)
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Brian Donegan wrote:
Do you mean standoffs?


No, I mean screw terminals at the outputs for wiring up to the I/V stage.
Brian Donegan  
#35 Posted : Thursday, November 18, 2010 9:17:36 AM(UTC)
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Quote:
No, I mean screw terminals at the outputs for wiring up to the I/V stage.


Ah, okay. I can check the clearance tonight.

You actually have a lot of options for mounting them. I will be including a 90-deg header with each one for mounting vertically. You could also mount them flat under the DAC. The header is not pre-soldered so you have a lot of flexibility. You could just use some resistor lead clippings and offset them slightly, etc.
avr300  
#36 Posted : Thursday, November 18, 2010 11:22:49 AM(UTC)
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Ordered the combo !!
LeonvB  
#37 Posted : Thursday, November 18, 2010 11:25:42 AM(UTC)
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Brian, did you calculate the shipping weight correctly? Shipping seems to cost an awful lot for 6 items so small.
avr300  
#38 Posted : Thursday, November 18, 2010 11:28:25 AM(UTC)
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$3.28 to DK for the combo (3 items).

Seems ok to me

Edited by user Thursday, November 18, 2010 11:29:54 AM(UTC)  | Reason: Not specified

Beefy  
#39 Posted : Thursday, November 18, 2010 11:30:59 AM(UTC)
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Brian Donegan wrote:
Ah, okay. I can check the clearance tonight.

You actually have a lot of options for mounting them. I will be including a 90-deg header with each one for mounting vertically. You could also mount them flat under the DAC. The header is not pre-soldered so you have a lot of flexibility. You could just use some resistor lead clippings and offset them slightly, etc.


Thanks Brian. I guess the related question would be what is the total height of a 'standard' IVY, Buffalo and Trident combo, all mounted only with the included gear.

Cheers!

Edited by user Thursday, November 18, 2010 11:31:47 AM(UTC)  | Reason: Not specified

LeonvB  
#40 Posted : Thursday, November 18, 2010 11:35:28 AM(UTC)
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28$ to NL for 2 combo's isn't funny. I ordered it anyway, as the nice thing about Brian is that he always corrects it if he sees it's wrong. I'm just making sure he notices it. ;)
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