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In Reply to: RE: Years, I'd guess - checked mine with multimeter after 1.5 years, still 9V. N/T posted by carcass93 on July 17, 2015 at 20:37:38
Thank you to all.
~D
Wherever you go there you are.
Follow Ups:
you can tell leaky caps or mis wiring by the battery temperature. If it gets warm, pull out immediately and heck ircuit
c
damn computer has a mind of its own sometimes
... says it all.
Hi all, long time reader, first post.
I've made one of these for my flat screen.
I stream movies/music from my MBPro; is this tweak safe to install on my computer?
thanks
I've built prototypes of the BGT into a USB cable and it works fine.
Simply plugging t in to my computer, nothing else hook up seemed to speed it up a just a bit.
I thought the inventor of the Ground Tweak (name escapes me)recommended against using with digital?
That may be Bud Purvine. His ground tweak has no active power however. Using an analog BGT on digital components yields mixed results mostly negative, The key, as stated, in the nature and value of the bypass caps.
Thanks. So I tried an experiment with uncle Dave and uncle Stu's help. At first I just took an available 9 volt (actually 1.5 v) battery wired up 2200 uf across it and put it in my audio pc. Wow not even to spec and I already liked it better than my baseline . So to do it right somewhat I got a fresh 9 volt wired up about 55000 uf (because that is all I had available) across it and it sounded dull. Worse than my baseline. So I am back to 1.4 volts with 2200uf and I am just enjoying it more. With more time to dabble I'll try 100000 uf across 9v.
Don't forget the bypass caps: Critical for performance. I use film caps about 1 to 2 UF for analog, and .15 uf for digital/video.Also lower voltages like lower capacitance, BTW. A big cap takes time to charge up
Edits: 07/28/15
Put about 90Kuf on the BGT now and initially I did not like. But with time (thanks for reminding me Uncle Stu)I am beginning to like it. Very big, seems louder, very clear. Although I must say that my audio pc environment visually is getting very cluttered: separate ps for OS and data hd now this large clutter of caps for the usb bgt. On Computer Audiophile discussion of the Regen I see a post where one guy says a disrupted ground (infinite resistance, cut ground wire) sounds best but only after you make the handshake with the dac at pc boot up. So I can see fitting a switch in the ground circuit to appropriately be open or closed. But when does the clutter end.
Ok uncle Dave I have a bgt on my ssd ground and my data disc ground. Not a lot of uf but enough to make a positive sq improvement. Every bgt adds a degree of warmth and less grittiness, a little bit more dynamic and more pleasant to listen to. I'll experiment with more uf's later. Also I have had bgt's on my bass amp, gt's on my panel amp for a few years now.
I have a bgt on my ssd ground and my data disc ground.For clarity's sake (how is she BTW?), the drives BGT'd in theob's audio computer and the SSD in mine have their own PSUs, i.e. they're not powered by the motherboard's PSU.
Separate PSUs do IME make for a big improvement but adding a BGT seems to make things sound a bit smoother.
Edits: 07/30/15
Took the plunge; one on my computer (9v, 10000mf cap, small bypass cap). Pleased with the results, though it does seem to make the computer battery drain a bit faster (I use an external battery to augment the internal one) -- or it could just be my imagination.
Did a lantern battery & 10000mf cap, small bypass cap & VERY pleased with the results there on the television.
Contemplating adding another 9v with cap there as well.
My dac has an external p/s; is it safe to put on there?
(You guys said not to use it on digital components; but this isn't a purely digital component)
You can use the BGT on digital just requires certain different set ups. I use more capacitance: up to a 100KuF and very small bypass caps (.15 or smaller depending on the cap). Silver wire also helps.
Remember the digital /video works at much higher frequencies so the smaller caps are necessary to clean the high frequency hash.I fnd copper wire, 50K uF and 1 to 2 uF bypass is plenty for analog
Yes it's OK if you followed the schematic.
~D
Wherever you go there you are.
. . . is this tweak safe to install on my computer?
As it happens, I've just tried the BGT thing on my Fit-PC2 music-playing computer, connecting it via a USB socket (obviously, V- only with V+ & D+/- disconnected). Despite the Fit having a pretty good, Swenson-designed C-L-C PSU, there's a very worthwhile difference. It's been running for several hours here; seems safe.
Have a go and report back . . .
D
"connecting it via a USB socket (obviously, V- only)"
Dave, is the case (in your case) also connected to V-?
Just curious... Tnx, Rick
is the case (in your case) also connected to V-?
I pretty sure I'm right in assuming that the Fit-PC's case is grounded but it'll be tomorrow before I can, er, case the joints. Whatever, I've since added a second BGT thingie to the digital side of things, this time to the USB> I2S board. That hasn't even got a case to be grounded but the resulting SQ "pop" was so marked as to be a bit scary.
Details t/f in a day or two following delivery of better quality bits (not bits-is-bits bits but components).
Please don't ask me to make a case for the USB> I2S boar so I can try grounding it . . .
D
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