Search results for query: *
- Users: briantf27
- Order by date
-
MG Head DT pot shunt saga
Quote: Originally posted by Videoshielded Based on my experience, the improvement could well all be attributable to the shunt. Pots really, really crud up an input signal. I don't think additional input padding is going to give you significant extra control. You won't likely move the...- briantf27
- Post #5
- Forum: DIY (Do-It-Yourself) Discussions
-
MG Head DT pot shunt saga
Quote: Originally posted by Videoshielded Yipee, congrats! Yeah, it's a heck of a mod. The only two other things I know of that will kick it up a similar notch are (a) replacing the coupling caps and all the resistors or (b) putting constant current source boards on the plates of the...- briantf27
- Post #3
- Forum: DIY (Do-It-Yourself) Discussions
-
MG Head DT pot shunt saga
So I thought I'd make another simple mod to my MG Head with 47k pot input->wiper shunt resistors as recommended by Videoshielded.... Yeah Right!!! In the process of simply soldering the Caddocks to the stock Alps pot I lost the right channel. Input to wiper is now open. So off to angela.com I...- briantf27
- Thread
- Replies: 4
- Forum: DIY (Do-It-Yourself) Discussions
-
X-Can review in Stereophile
They've reviewed the X-Can before. This is a rehash for the most part. When it comes to headphone amps they're very hodge podge. The Cary SET amp sounds good as does the Orpheus, but then everything else is pretty much the same.... Brian.- briantf27
- Post #6
- Forum: Headphone Amps (full-size)
-
Alps pot fried when shunting!! - MG Head DT
Ordered the Alps Blue Velvet from Angela Instruments. Incidentally after completely desoldering the stock MG Head DT pot, I noticed a stamp 100KAX2 which is the same stamp I see in the picture of the Blue Velvet on the angela.com site. The stock pot, however is not in a blue plastic casing...- briantf27
- Post #12
- Forum: DIY (Do-It-Yourself) Discussions
-
Alps pot fried when shunting!! - MG Head DT
I'm going to order an Alps from Angela.com I guess. It's a tad larger but I think there is room to spare in the MG Head. Thanks for the leads. FWIW, anyone have experience comparing the Blue Velvet to the TKD ? The TKD is about $60 from Percy and about the same size as the Alps. Just...- briantf27
- Post #11
- Forum: DIY (Do-It-Yourself) Discussions
-
Alps pot fried when shunting!! - MG Head DT
Whoops. Cut and paste error on my part! My problem is the size constraints inside the MG Head DT. The current pot has a height of about 22mm and there is barely any room to spare. These measure 1.25" square according to the auction which converts to 31.75mm by my calculations... Brian.- briantf27
- Post #5
- Forum: DIY (Do-It-Yourself) Discussions
-
Alps pot fried when shunting!! - MG Head DT
Quote: Originally posted by wasifazim Those Alps Blue Velvet pots are still on sale on eBay, the ones that may or may not be fake but are of high quality, according to those who've tested them..- Wasif These? http://cgi.ebay.com/ws/eBayISAPI.dll...item=802196575- briantf27
- Post #3
- Forum: DIY (Do-It-Yourself) Discussions
-
Alps pot fried when shunting!! - MG Head DT
So I picked up a couple Caddock 47k to shunt the Alps pot in my MG Head DT, and low and behold I appear to have fried the left channel! The volume was uneven after the mod so I removed the resistors and took these measurements with the Fluke: Left Channel: input to wiper : OL input to...- briantf27
- Thread
- Replies: 11
- Forum: DIY (Do-It-Yourself) Discussions
-
Soldering Iron, Multimeter and other questions.
Quote: Originally posted by joe dick if, like me, you find it hard to justify the somewhat stiff initial outlay for weller soldering stations and fluke multimeters you can, like me, get by on radio shack stuff. i have found the 15watt soldering iron to be just what i needed. and for...- briantf27
- Post #4
- Forum: DIY (Do-It-Yourself) Discussions
-
Soldering Iron, Multimeter and other questions.
I own and use Weller soldering stations, and would recommend them. The Weller WES50 is a good, reasonably priced unit. That's what I have at home. As far as Multimeters go, the sky is the limit. It really depends on what kinds of things you want to do with it. But I would stick with Fluke or...- briantf27
- Post #2
- Forum: DIY (Do-It-Yourself) Discussions
-
MG Head Modification, Stage 1
Initial Sound Report: This is proving to be a nice bang-for-the-buck mod to the MG Head. Bass response is improved and is still tight. The extra bass is certainly not dramatic, but these Tungsrams aren't bass champions to begin with, either. However the improved detail I'm hearing now, is quite...- briantf27
- Post #7
- Forum: Headphone Amps (full-size)
-
MG Head Modification, Stage 1
Quote: Originally posted by lextek Interesting. What are the expected improvements?? Cleaner detail but mostly better bass extension. Remember the stock cap values in there are 0.22uF (despite the schematic specing 0.1uF). The 1.5uF caps should lower the frequency cutoff...- briantf27
- Post #6
- Forum: Headphone Amps (full-size)
-
MG Head Modification, Stage 1
Update: Had ants in my pants this morning and since I live across the street from work, here I am.... So I've shortened the leads on the Auricaps to mere stubs that BARELY reach around the caps' girth to the C1 and C2 solder points... The aquarium pump like hum: almost gone. Almost but not...- briantf27
- Post #5
- Forum: Headphone Amps (full-size)
-
MG Head Modification, Stage 1
Well in about 5 minutes before I left work this evening, I slapped the Auricaps into the MG Head DT. I now have annoying transformer-like buzz in the left ear. No time to tweak before leaving the office, though. I think the leads on the auricaps can stand to be shortened some still. I'm also...- briantf27
- Post #4
- Forum: Headphone Amps (full-size)
-
MG Head Modification, Stage 1
Well its been a long time coming, but finally tonight, the festivities begin. Click the attached photo.... These will mark stage 1 of my long overdue MG Head DT mods. Will report back on the aural impact shortly. Initial observations: My my do those leads ever need to be cut down...- briantf27
- Thread
- Replies: 6
- Forum: Headphone Amps (full-size)
-
Place to Buy Switch like that on MG Head?
Radio Shack does have these kinds of things in local stores. On the web any of the big outfits like digikey and mouser will also do.- briantf27
- Post #3
- Forum: Headphone Amps (full-size)
-
Tubes on it's last legs
The power tubes wearing out will typical manifest as a static-like sound in one or both ears, while the driver tube will typically start to clip. I recently ran into just this: sudden severe clipping. So I swapped out my driver tube (I was disappointed at its 6 month lifespan) only to have the...- briantf27
- Post #12
- Forum: Headphone Amps (full-size)
-
Afordable Tube upgrades for Head MG
Quote: Originally posted by millerdog I just saw a set of four sylvy gold brands fetch $260 on ebay! md Lunacy. Brian.- briantf27
- Post #5
- Forum: Headphone Amps (full-size)
-
Sudden MG Head DT Problem
Quote: Originally posted by ServinginEcuador Brian, I actually ordered some AD825s from www.upscaleaudio.com Look under Products| Listing of Products by Manufacturer | Ah! Tjoeb 4000 CD player | Other Products & accessories from the Ah! factory | and lastly Ah! Tjoeb Op-Amp flavor...- briantf27
- Post #8
- Forum: Headphone Amps (full-size)
-
Sudden MG Head DT Problem
Quote: Originally posted by ServinginEcuador Brian, I have had my D500se for about a week now, running 24 hours a day as I was concerned about problems like you are speaking about. How long did it take for this problem to surface it's head? I hope this thing isn't problem ridden!!!! I...- briantf27
- Post #5
- Forum: Headphone Amps (full-size)
-
Sudden MG Head DT Problem
Well it looks like I spoke too soon.... Turns out that the MG Head is just fine and dandy, but the Cambridge CD player is distorting badly. Must be a bad analog output driver. Haven't tried its digital outs yet... Thanks for all the responses, though. LOL. j/k Brian.- briantf27
- Post #2
- Forum: Headphone Amps (full-size)
-
Afordable Tube upgrades for Head MG
You can do very well under $50. New tubes aren't worth your money. Stick to older vintages. For power tubes: Try some of the older Valvos. These are inexpensive and plentiful. They sound great in the MG Head, too. I recently picked up a pair for $15 shipped. They tested at 56mA and 54mA, so...- briantf27
- Post #2
- Forum: Headphone Amps (full-size)
-
Sudden MG Head DT Problem
Hey all, Been a while since I've on the forums here, and I wish I were back under better circumstances... In any event, my 1.5 year old MG Head DT (not the OTL) has started acting up just today. It is basically distorting all over the place... It sounds like clipping to me. Some info...- briantf27
- Thread
- Replies: 8
- Forum: Headphone Amps (full-size)
-
NOS tubes: nothing but hype? (longish)
Not only do you have to beware of phonies, but of 95%+ of people who misuse the tagline "NOS". And in fact, there are very very few truly NOS tubes out there. Know what you're buying. As for specifics, others have spelled it out. Tube matching is like anything else in your system. You have to...- briantf27
- Post #15
- Forum: Headphone Amps (full-size)