audiophile nirvana help building a system
Hello all. Can anyone make a few suggestions to make my search for a better Hifi easier? OK so I am looking for my audiophile nirvana and to do that I need to build the system myself as I certainly...
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Frugel-Horn XL for Alpair 10.3/10p
We showed the 1st prototypes of the Frugel-Horn XL for the Alpair 10.3/Alpair 10p* at this summer's VI diyFEST. Subsequently Mark heard them when he stopped by at the end of his recent visit to Canada....
View ArticleFrugel-Horn XL for Alpair 10.3/10p pointer
For those looking for a floorstander for their shiny new Alpair 10.3/10p: http://www.diyaudio.com/forums/full-...-10-3-10p.html dave
View Article11BM8 heater wiring question
Is it possible to use a power transformer with the more common 6.3 and 5 volt taps to create 11v for the 11bm8 and power the pre-amp 6.3v 12ax7 fil? im not sure if i need too use the triode sections of...
View ArticleFor those who use "WINAMP"....... the end is near....
Just came across this ...................... "Winamp.com and associated services will no longer be available past December 20, 2013. Additionally, Winamp Media players will no longer be available for...
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Tektronix 465 horizontal issue
Hello. I just got a Tektronix 465 (simple, no B or M) oscilloscope off ebay about 2 weeks ago (~100$) and I was very happy that it worked out of the box with no issue. Very good cosmetic condition,...
View ArticleAftermarket Head Unit Bypass in 2005 Subaru LegacyGT
Running a tablet directly to my amplifier(s) via 3.5mm jack will save me over a thousand dollars. I know it can be done, but what are the drawbacks? Let's exclude the pretty lights, 30 some ought'...
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TommyTommy, a PSU for the Calvin buffer
Here is a paper design which has been simulated but not built (and not tested), intended to supply plus or minus 18 volts DC at less than 200 mA per rail, to Calvin buffers. It has very large "Line...
View ArticleWhy are external amplifiers superior?
Whether you're on a tablet or smart phone, you probably know how poor the audio quality is. Use an external amplifier & you're more than likely to notice a difference. But why? A colleague of mine...
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NEW CSS LD22C CSS LD22F tweeter compared to LD25X off axis
Just finished doing a lot of testing on the LD22C LD22F tweeters and thought some may be interested in a look at them against the LD25X (discontinued) tweeter. More info from CSS will be coming but...
View ArticleSteve Wilson remix of Yes' Close to the Edge
I've always preferred the original vinyl on this, or at least 24bit flacs of the original. But WOW, Wilson has done an amazing, unbelievable job on the digital 2.0 remix of this album. I'm blown away....
View ArticleLM386, not what I expected.
http://m.youtube.com/watch?v=GYV95Fs...%3DGYV95Fs6UGE Pins 1 & 8 are left open, so a Gain of 20. Most of these "headphone amplifiers" have a gain of 50, or 200. I can't even toss a 10uf betweens 1...
View ArticleTSE R4 Choke and C5 Cap - Worse Quality Sound?
I replaced R4 with a Hammond 193J and added a Solen 100uf, 400V capacitor to my TSE tonight. I found it very difficult to get reasonable bias current after doing this. I measured the resistance of the...
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lil Amp - Class A
When I joined this forum, I had started on my venture of selling Ultra Fi Amplifiers. But I always remember my roots as a DIY hobbiest in Electronics - while I was an engineering student in the 70's.....
View ArticleReplace cap and resistor?
I have a 30 year old Sansui SR222MKII turntable. The speed runs a little slow (about a note slow when comparing to the same track on a digital source). A strobe disc confirms this. I have bought a used...
View ArticleDrivers for Sharp GF8989 Replica
Dear DIYaudio fanatics, I am dedicating myself to build a replica of the 1980's Sharp GF 8989 Radio Cassette recorder. You'll find pictures of this beautiful vintage boombox here. The biggest problem...
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A riaa compensation
Hi guys. I'm sitting here renovating a tube riaa from a swedish legend Jan Lodström. This stage is from his riaa/preamp Remus. Its considered sounding pretty good but since I have now changed...
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AP testing of the 6L6 SE
I'm sure 50%+ quality of a tube amp is determined by the components, 30% by building and 20% by design. We built a 6L6 SE for testing purpose with new transformers and components. Testing with HP3563A...
View ArticleUsing boost DCDC in DACs
In a DAC system, the controller and DAC chip are working at 5V or 3.3V. This can be easily powered by USB. But some DAC need a operational amplifier buffer or driving output stage, it need 12V-18V. A...
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