robertkd
Been here a while! 
Electronics Engineer from sunny Queensland
Posts: 111
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Post by robertkd on Feb 27, 2009 11:34:02 GMT
Mike You are already on a winning formula. Go by your gut instincts,and your ears.  Personally, I like the way they have evolved. ;D Alex Alex so you like the way Mikes ears have evolved?  |
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Deleted
Deleted Member
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Post by Deleted on Feb 27, 2009 12:03:23 GMT
Robert
Can't really tell. The yelow bear changes his headphones too quickly. ;D
Alex
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Post by ALVIN on Mar 28, 2009 20:18:24 GMT
MIKE, STOP --- you have racked your brains out over the little pinky! (and all those sleepless nights i shoud not wonder!) If it feels right ---- it is right! Mental illness through obsession is a horrible thing! ------ Ive been there, I shoud know! words of wisdom for today ---------- by Alvin.
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Post by PinkFloyd on Jul 1, 2009 20:25:16 GMT
Now comes with a choice of either red or blue Evolution XPC PROFESSIONAL oxygen free cable  I'm going to pull the boat out and order a 500 metre reel of black Evolution XPC PROFESSIONAL too so that will give the choice of red, black or blue I'm also fitting different type of feet now.... The ones I were using shifted position after a while (due to the heat at the base of the PSU) but these new ones stay put no matter how warm the PSU gets. The fusing system has also changed... I now adopt a high quality 5 amp rated in-line fuseholder incorporating a white polypropylene two part connector with a twist action assembly (20AWG red insulated wire / Tin plated brass terminals) with a user replaceable 125mA (250mA for US voltage) time delay fuse.  |
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Post by PinkFloyd on Jul 1, 2009 20:36:46 GMT
By the way.... I'd like to point out something Syd said (Juke) when he took delivery of his Pinkie.... "The 'Little Pinkie' is actually more substantial looking than I imagined, you need to emphasise that when publicising IMHO. I was picturing a little box like the sort of in-line types come with a few things that aren't wall-warted."Well, yes...... it's not "tiny" but, then again it's far from large.... maybe I should have called it a "medium" Pinkie.... nah, that doesn't sound right It weighs nigh on a kilogram so it's NOT the size of a postage stamp but it is still "little" in the scheme of things.... weighs around the same as a bag of sugar and is about the same size as 4 "fun sized" bananas stacked together  |
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Post by PinkFloyd on Jul 16, 2009 21:26:29 GMT
Now available in red, blue or black Evolution OFC output cable! The bases of the Evatron enclosures were getting a bit warm where the transformer was mounted (not a biggie as the enclosures are 130C temp. rated) so I will now be incorporating a piece of FR4 laminate between transformer and enclosure base.
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Deleted
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Post by Deleted on Jul 17, 2009 23:37:46 GMT
Miguel
Seeing Mike may be in the land of Nod, I will reply.
"FR4 is a glass fiber epoxy laminate. It is the most commonly used PCB material. 1.60mm FR4 uses 8 layers of (7628) glassfiber material. ..."
Alex
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Post by PinkFloyd on Jul 18, 2009 20:58:36 GMT
In this incarnation all it is doing is providing a barrier between the base of the transformer and the ABS enclosure.... it ensures that the enclosure remains cool to the touch.... I am also going to start using UL94V-2 rated M4 nylon nuts and bolts to mount the transformer so no heat is transfered through the screws. When I'm up to speed with my backlog I'll build you one of the new ones with the chassis mount transformer Miguel.... let me know what you think Juke mentioned that he was surprised by the size of the Pinkie, he thought it was a lot smaller than it actually is so I have taken a couple of pics of one beside an X-Can V2 to give a better idea of the size:   |
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Post by PinkFloyd on Jul 19, 2009 14:57:08 GMT
Cool Mike, btw I have the HD ready and should ship it out this coming week. That is excellent Miguel, it will give me something to listen to when I come out of hospital (going in for an operation next Friday) hopefully the amp with USB DAC will arrive at the same time  |
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Post by PinkFloyd on Jul 29, 2009 22:14:47 GMT
Hope the surgery is minor and everything comes out ok. Best of luck. Just veins mate ;D Not as "minor" an op as I was led to believe but I'll soon be dancing again Still here, yup Miguel, I am currently evaluating a new prototype transformer ( made to my requirements ) and I would like your opinion of it so, if you don't mind, I will build a Little Pinkie for your X-Can V2 and ship it to you...... The new transformer is 30% larger than the existing one and weighs a KILO.... it is wound by hand in the UK and outputs almost 40VA... Let me know what you think of it compared to your exsisting Little Pinkie |
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FauDrei
Been here a while!
Posts: 489
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Post by FauDrei on Aug 3, 2009 8:35:18 GMT
Oh no! Just obtained Little Pinkie and now there will be "Little Bigger Pinkie"... |
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Post by PinkFloyd on Aug 3, 2009 21:02:41 GMT
I'll be making it tomorrow Miguel, complete with new addition of EPCOS surge protector (results in a more stable mains supply to the transformer providing a much quieter noise floor) Things are getting VERY tight inside the Evatron enclosure with this new "bigger" transformer with only millimetres to spare in places so the enclosure is pretty much "maxed out"...... Sound quality of these new transformers? I won't say a word, you tell me what you think |
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FritzS
Been here a while!
Sound of Blue Danube
Sound of Blue Danube
Posts: 1,364
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Post by FritzS on Aug 4, 2009 5:14:08 GMT
Mike,
are they RR core? Or? Which sec. VAC windings they have?
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Post by PinkFloyd on Aug 4, 2009 19:57:28 GMT
Built her this afternoon Miguel, she will ship tomorrow I have included the 1000uF caps in the bubblewrap. Mike. |
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Post by PinkFloyd on Aug 17, 2009 16:27:51 GMT
Excellent, that didn't take too long to arrive Did you notice a weight difference between this one and your other one? The new "bigger" transformers add a few hundred grams to the weight. It won't need much burn in Miguel |
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Post by PinkFloyd on Sept 6, 2009 21:38:07 GMT
I've decided to go with these new transformers as I feel they are better built overall.... every Pinkie from here on in will have them fitted. They are slightly more expensive so there will be a price change shortly to reflect the added parts cost..... In fact, all of the components used in the Pinkie have seen a price hike in the last few months so I reckon I'll have to end up adding between 10%-15% onto the price of the Pinkie.
Mike.
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Post by PinkFloyd on Sept 18, 2009 18:16:42 GMT
A large batch of the new transformers are on their way Manufactured in England by VTX..... they have a double section fully shrouded bobbin construction with impregnated varnish coating which ensures they are pretty much noise free mechanically..... the best transformers I have used to date |
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Post by PinkFloyd on Sept 19, 2009 20:22:05 GMT
That's the way to do it Miguel, 1/8th of an inch is good. Don't worry about glueing the cap, it will be fine..... You could always glue it onto the adjacent cap with a drop of super glue if you feel paranoid...... Notice any difference to the SQ with 1000uf?
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Deleted
Deleted Member
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Post by Deleted on Sept 19, 2009 21:03:23 GMT
Yes, get a decent solid state amp instead ! Perhaps something like the big Class A mentioned in the post about driving Senns ?  |
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Deleted
Deleted Member
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Post by Deleted on Sept 19, 2009 21:11:48 GMT
Not only do they rock, but their internal electrodes vibrate in time to the music too ! |
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Post by PinkFloyd on Sept 20, 2009 20:55:47 GMT
Alex, no amp can help the Senn cans! The HD580/600/650 sounds bad regardless. Did I mention tubes rock! Mike, the V2 sure sounds better! Between the new Little Pinkie and the 1000 uF I am very happy indeed. It is a pity there are so many snubs out there, they should give the V2 or the V1 a chance. Indeed. I am going to send you a 3.3uF film cap and want you to fit it in place of the 470nF (blue cap) that sits directly adjacent to the DC input on the PSU board..... IMO this brings about even further improvements..... let me know what you think |
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Post by PinkFloyd on Sept 20, 2009 21:24:04 GMT
Between the new Little Pinkie and the 1000 uF I am very happy indeed. I have been making these for a few years now and am convinced it's not about the "type" of transformer used but the "quality" of said transformer that makes the difference. The company who I am now employing to make the "engines" for the Pinkies are well aware the transformers are intended for audio use and the quality control / materials are first class.... custom wound in the UK to very demanding standards...... I started off years ago using "off the shelf" transformers but soon found they lacked consistency, some of them measuring up wrong, others going into meltdown and some of them mechanically noisy..... you get what you pay for and if you want consistency and quality you've got to go down the tailor made route to "your" specifications... it may be a bit more expensive to go down that avenue but well worth it in the long run! I came home today and there was a big box of 100 freshly made transformers awaiting me.... you could smell the varnish the minute the box was opened.... each and every one of them built to perfection.... that's what I expect and that's what you get if you pay a little bit more and demand the best Totally agree..... the V1 / V2 are classics and do the same, if not better, job than "any" headphone amp out there and in most cases do a better job.... good to go for at least another 20 years IMO, you can't re-invent the wheel (at the present moment as far as amplification is concerned) so it's very hard to actually "better" the V1 / V2..... |
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Post by PinkFloyd on Sept 22, 2009 22:10:47 GMT
Look forward to installing that new cap Mike, thanks. I will ship everything on Friday Miguel.... you fit the RED 3.3uF cap where the 470nF (blue) film cap resides.....  There are "4" solder pads at this position, fit the RED cap on the two inner pads.... Mike. |
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Post by PinkFloyd on Sept 22, 2009 22:37:26 GMT
A large batch of the new transformers are on their way Manufactured in England by VTX..... they have a double section fully shrouded bobbin construction with impregnated varnish coating which ensures they are pretty much noise free mechanically..... the best transformers I have used to date  Arrived |
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FritzS
Been here a while!
Sound of Blue Danube
Sound of Blue Danube
Posts: 1,364
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Post by FritzS on Sept 23, 2009 4:41:38 GMT
A large batch of the new transformers are on their way Manufactured in England by VTX..... they have a double section fully shrouded bobbin construction with impregnated varnish coating which ensures they are pretty much noise free mechanically..... the best transformers I have used to date Mike which windings - prim and sec voltages and currents - they are have? |
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I'm going to pull the boat out and order a 500 metre reel of black Evolution XPC PROFESSIONAL too so that will give the choice of red, black or blue 
