How to charge Prius HV batteries
Hello all. Non-audio topic, but I'd like to ask if anyone here has tried to recharge the HV battery in a 2005 Toyot prius. It's made up of 28 x 7.2 volt NiMH cells in series for nom. 208 volts. I'm...
View ArticleOP Tx for signal tubes in Headphone amps
Just a quick question, What Output Tx's have you used for small signal tubes like 12au7 or EF86 to drive Headphones? Thinking single ended.. I have only seen line driver Tx's with 63k to 300 Ohm? What...
View ArticleSLIGHTLY SICK AMPLIFIER
Hi to all: and especially to those who can help me on this one! I have a push-pull tetrode amp (early 90Â’s VTL, KT88 output valves). A hum has developed in the left-hand channel, and music in that...
View ArticleHelp for 3 or 4 way loudspeaker
Based in my actual 2 way http://www.diyaudio.com/forums/multi...way-xover.html I want to add other box with 2 woofers in parallel for a 3 way or one woofer & one sub-woofer for a 4 way, I'm...
View ArticleminiDSP DAC & I2S
Hello, new user here :) I've been looking into building a pre-amp around the miniDSP 2x8 and basically I'm not sure about the quality of the internal DAC. In my current setup I use a DacMagic to feed...
View ArticleNoob wanting to build chip amp, help appreciated
Hey guys, I'm looking for an easy to follow chip amp design that i can wire point to point and hopefully acquire everything off the shelf at the usual electronics stores...
View ArticleReplacing smoothing caps on Arcam AVR200 advice
Hi, I have an Arcam AVR200 I bought it ages ago as spares and repairs off eBay for £45. I have listened to a friend’s 200 and thought it was amazing. Anyway as it said in the EBay description, all...
View ArticleWTB: 18 to 22000uf 100volt capacitors screw top.
I'm looking to put 6 new capacitors in my adcom gfa5503. It has 18000 uf in it now , so anything from 18000 to 22000 should be fine at 100 volts. Size is 2.5 inches by a little over 4 inches tall and...
View ArticleHammond Transformer Warranty
Well this came as a bit of a surprise to me today. We ordered 2 Power transformers, 2 chokes and 2 SE Output from the Hammond Transformers in the UK. They all arrived okay last week in their Black...
View Articlewhat next, help please
right i have built a few cmoy's now and am rather happy with there sound, i have been told there are better headphone amps out there but i do not have a clue what to pick next, could someone please...
View ArticleHuge change in audio quality simply by changing the pads on headphones?
so i bought a cheap pair of 5$ sentry headphones from big lots and they sounded terrible to begin with one channel was wired out of phase with the other so i had to open the headphones up and re solder...
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Tube ID needed
Hello ! School year is over, I've just moved back into my parents house for a while and I've been going through some leftover projects trying to get the "electronics" side of my brain back in function....
View ArticleConical Horn + Midrange Enclosure
Hello. I'm quite new to audio, but I'm building a set of conical horns that mount on a midrange enclosure. I was wondering if anyone had any tips for an enclosure design that would work well with a...
View ArticleOff the shelf TAS5630 based amp
I have a friend who's into really pretty looking packages, as well as remote, and functionality like tuner or tone control and switching etc. He's impressed with the TAS5630 sound, but wants a amp that...
View ArticleTweeter Questions?
Hello Everyone. I am helping a friend out with a project and I know there are so many tweeters out there its just to much to sort out. I am looking to get him a great sounding tweeter that is natural...
View ArticleNewbie needs help finding transistor
Hello everyone, signed up here hoping to get some info and insight from you DIY masters. Im not even sure if im posting this in the correct spot, feel free to move to correct location. I have a...
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Quasi complementary OPS vs Complementary OPS
Hi everyone, I've simulated this amplifier using quasi complementary output stage, I don't pretend to build it, it's just to compare the characteristics of a typical complementary output amplifier,...
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traces/placement psu board for class A amp
I'm making new boards for my f5 v2. Nothing special, I just added snubber, leds for +/- rails and two connectors for bleeder resistors for use only under testing. These will be removed when I plug the...
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