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Yes, that's true. There are a couple of downsides to that though. The cost and complexity will be prohibative to some but also there's the issue of actually needing more voltages than that. From what I understand, a feed is taken directly from the power input (before either reg) to power the headphone opamp. So that would need to be taken into consideration if you wanted to use the Gator or standard Caiman/7520 opamp board for headphone use. :)Quote:
Originally Posted by chrism
Somewhere down the line I seem to have misplaced my Murata regulator version of my test Caiman so I can't work on a solution. I suspect that I lent the unit to someone but forgot who it is :doh:. The set I got off someone on AoS is now fitted to the forthcoming TC-7510/Caiman+ replacement so I don't want to butcher that prototype.
Anyone got some pulled Murata regs that I can borrow/steal?
Stan, I have a set you can use if it will help everybody out. PM me your address and I'll post them. :)
Beat me to it :)Quote:
Originally Posted by Canetoad
I don't know Dave, i'd be able to probably give some positive comments if i had one on a bench in front of me & could get my oscilloscope on the regulator input & output to see what's going on.Quote:
Originally Posted by HighFidelityGuy
I don't like guessing, sorry ;)
The thing with these regulators is they offer a wider bandwidth, they are a lot faster to respond to current demands than common or garden regulators. They also offer lower noise & more DC accuracy & probably over a wider temperature it's more stable.
This may sound nuts, but a small inductor following the regulator & before the capacitor may well be beneficial in slowing things up a bit to prevent oscillation :scratch: I'm not suggesting you try it, but i think i would just to see what happens. 50nH kind of springs to mind, should be a nice low resistance even in a small package but with enough inductance to give some kind of isolation between the regulator & capacitor...
Could be a country mile out though :eyebrows:
Bernie,
also have Dexa-Regs here I want to fit in my Caiman ... Tell me, did you attach heatsink to them? I wonder if heatsinks will fit within the box at all.
Report is welcome ;-) Cheers,
cz
No, I haven't fitted heat sinks to them. I don't think they need one in this application (low current). Somebody with more knowledge may be able to give you a more detailed reply.
See the photo HERE:
http://theartofsound.net/forum/showp...6&postcount=51
no heatsinks ;)
... thanks! cz
Hi! Managed to put the Dexas in last night. Whistle when using the Gator is gone. First Impression is good :-) Also managed to attach small heatsinks. The Regs (Especially the 5v one) get quite "warm" - I meassured about 55 deg C. Is this within the normal range? And do you (the other Dexa users) run your Dac with the R1 wire link or did you reinstall the resistor?
Cheers, cz