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Post by PinkFloyd on Feb 10, 2009 15:44:33 GMT
Coming soon..... the Little Pinkie V
A high quality 1200mA, 12VDC, Linear Regulated power supply for the Musical Fidelity V series of components.
Measuring 100 x 70 x 60mm and weighing 0.9kg (900g) the Little Pinkie V is the perfect partner for the V series.
No nonsense design means the Little Pinkie V is not only built for performance over looks, it's also affordable... housed in an ABS PSU enclosure with fixed output leads it compliments the V series of components very well.
Full details to appear shortly and estimated price of the Little Pinkie V is around the £100 GBP mark.
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Post by Deleted on Feb 10, 2009 21:00:39 GMT
Mike
Are you able to make it internally adjustable within a small range ? e.g. 12 to 12.6V. Making it adjustable up to 12.6V would help where the equipment has a series reverse polarity protection diode fitted.
Alex
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Post by Deleted on Feb 11, 2009 1:56:11 GMT
Miguel
Some people may not wish to modify their gear by removing the series protection diode, (if there is one) perhaps due to lack of confidence, or not having a soldering iron . If Mike knew the gear the PSU was going to work with, he could set the voltage a little higher for his customer after consultation.
Alex
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Post by PinkFloyd on Feb 12, 2009 12:58:43 GMT
Change of plan..... I'm going to try fitting everything into the existing Pinkie enclosure so then there will be 3 versions of the Little Pinkie..... version 1 = 12VAC version 2 = 24VACT and version 3 = 12VDC.
The 12VDC version can be used with the V series of amps / Dacs and can also power the likes of the QED amp (or any other amp) that runs on 12VDC.
I have a few circuits in mind and am currently trying to shoehorn one of them into a Pinkie enclosure (using the same transformer that are in the AC pinkies) I will post photos as soon as I am happy with things.
The price will be more in line with the existing pinkies as there is a lot of work involved putting these together.
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Post by PinkFloyd on Feb 12, 2009 14:24:53 GMT
More to come on the Musical Fidelity V-Can too.... I'm testing the power supplies out on the V-Can and will, obviously, go with the circuit that brings the best out of the V-Can.... I can tell you already that a good PSU is ESSENTIAL if you want to get the best out of the V-Can, the supplied wallwart is nothing more than a joke.... perfectly fine for powering a portable radio but not good if you want to get the best possible SQ out of the V-Can. Anyways..... more to come  |
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Post by PinkFloyd on Feb 16, 2009 21:40:22 GMT
Here is the prototype:      I'm currently running it alongside my trusty old RS 1amp PSU (powering V-can) and am confident it sounds a lot better...... it didn't at first (using general purpose parts) but as soon as the EVOX film caps, UF4007 diodes and NIC NRSZ series electrolytics entered the equation it was a different story! Amazing what a huge difference a good quality part, used in the right place can do Pinkie V alongside RS PSU:  Now all I have to do is get a little PCB printed so everything will be more streamlined inside the enclosure, nothing wrong with it as it is but very time consuming when you're working with stripboard. If there are any "V-Can" owners out there who want to hear just how good their amp can sound then PM me and you can have a listen with the prototype Little Pinkie V...... I think this is MF's most tweakable headphone amp to date (externally and internally) and, in places, their best by far.... from stock there is a real hint of something "different", especially in the soundstage arena (think football pitch as opposed to pool hall) the air and space around instruments is phenomenal..... there are also downsides with the supplied wallwart, the amp runs out of steam when you crank the volco up, harshness rears it's ugly head, things fall apart...... Feed her some QUALITY direct current (DC) and everything falls back into place.... I'm currently in the process of tweaking the amp itself and it gets even better (more on this in a seperate thread)..... so far so good |
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Post by Deleted on Feb 16, 2009 22:18:59 GMT
Mike I can think of one major improvement. Get rid of the drab Union Jack, and put a Scottish flag instead.  Alex |
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Post by iszatso on Mar 8, 2009 9:35:58 GMT
As an owner of the v-dac, would definately be interested in this power unit. Keep us posted.
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oldson
Been here a while! 
Older than a well used glove
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Post by oldson on Mar 15, 2009 15:38:18 GMT
mid to end of april would be good for me!  |
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Post by skunkworks on Apr 2, 2009 21:41:00 GMT
Since I allready got a V-dac and the Vcan will probably follow is it possible to power both with one pinky V like the X-psu or do I need 2?  I wat to use them both in combination but don't want the table full of pinkys  |
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Post by Deleted on Apr 2, 2009 21:47:33 GMT
Since I allready got a V-dac and the Vcan will probably follow is it possible to power both with one pinky V like the X-psu or do I need 2? I wat to use them both in combination but don't want the table full of pinkys skunkworks One Pinky may very well be capable of doing this, but then you will be greatly reducing it's effectiveness, which is partly due to it's higher rated current capacity. In other words, you may then find it isn't much improvement over using both the original supplied PSUs. SandyK |
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Post by skunkworks on Apr 2, 2009 22:18:05 GMT
Hmm, you got a point there. is there any way to overcome this problem? And does the V-dac benefit just as much from a pinky as a V-can? If it doesn't I'll use the V-dac with the original wall-wart and the V-can with a pinky. ;D
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Post by skunkworks on Apr 3, 2009 13:29:47 GMT
Mike, maybe you could also make an UBER pinky to power a V-can/dac combo with a higher rated current capacity? But I'm probably the only one who want's to use em together.  If anyone else has sugestions they're all welcome. But something like an Uber pinky would make me one happy camper.  |
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Post by PinkFloyd on Apr 25, 2009 21:39:44 GMT
Interest in these guys is still pretty limited (to say the least) so I have held off getting PCB's made and will continue to put the circuit together on stripboard for the time being..... I will make these to order if anyone is interested. |
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Post by knireis on Apr 26, 2009 8:20:44 GMT
I'm interested in getting one, or even better a 'uber' pinky like skunkworks suggested, with two outputs for the v-can and v-dac.
What is the price for a pinkie V? And for a 'uber' pinkie (if possible)?
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Post by PinkFloyd on Apr 26, 2009 20:44:55 GMT
I'm interested in getting one, or even better a 'uber' pinky like skunkworks suggested, with two outputs for the v-can and v-dac. What is the price for a pinkie V? And for a 'uber' pinkie (if possible)? Two seperate power supplies are always the best bet, two outputs from the same transformer are never as good as two individual transformers. I offer a dual output Pinkie for the V2 series but it's more of a "budget" offering, kinda two for the price of one..... it's "OK" but I make it clear it is NO WAY the same as two individual pinkies..... The single output Pinkie I have designed for the V-Can / V-DAC etc. is £100 GBP. I build them by hand, to order, and they REALLY do make a huge difference.... |
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Post by Deleted on Apr 26, 2009 22:48:22 GMT
Mike is absolutely correct. Dual output supplies may be convenient, as far as taking up less room, but the best audible results will be obtained by using 2 individual supplies.
Isn't sound quality improvement the reason most people buy Mike's Little Pinkies for in the first place ?
Alex
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Post by PinkFloyd on Apr 27, 2009 21:58:07 GMT
Mike is absolutely correct. Dual output supplies may be convenient, as far as taking up less room, but the best audible results will be obtained by using 2 individual supplies. Isn't sound quality improvement the reason most people buy Mike's Little Pinkies for in the first place ? Alex No way could the existing enclosure do "dual output", it's pretty chok a blok in there with just the one transformer, smoothing, filtering, rectification etc. all taking up valuable pinkie space. I've had a couple of Pinkies go to V-DAC owners and the feedback has been extremely favourable with reports of greater dynamics, seperation, space... you name it.... the DC version of the Little Pinkie is having much the same effect as the AC version and I don't want to spoil it by punting out some inferior multi output Frankenstein type behemoth. I take pride in what I do and really appreciate all the positive feedback I get.... I'm also a great believer in "if it aint bust don't fix it" so will stick with single output in the DC incarnation of the Pinkie. |
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Post by PinkFloyd on May 5, 2009 21:30:53 GMT
I'm almost ready to rock and roll with these puppies and have finalised the component choice. The transformer will be 30VA double bobbin type with 470uF EVOX PHE830M class X2 across the Primary and 1N LCR polyprop across the secondary.
Rectification diodes will be Ultrafast UF4001, Smoothing caps will be 1000uF NIC NRSZ 105C series and regulation will be courtesy of 78S12 (2 amp) with WIMA MKS4 470nF to ground.
I've managed to condense the size of the circuit board so that everything is a snug and secure fit inside the existing Evatron Pinkie enclosure.
5 of these have been sent out to V-CAN / V-DAC owners and the feedback I have received has been extremely positive with improvements in SQ noted along the lines of "incredible" and "substantial".
I'm happy to start selling the DC version of the Little Pinkie and will be uploading full details to the Rock Grotto website shortly.
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Post by PinkFloyd on May 6, 2009 22:32:43 GMT
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Post by PinkFloyd on May 27, 2009 16:26:54 GMT
I am now getting the circuits custom made in Ireland on professional FR4 board, the only difference being Panasonic NHG series capacitors are now being fitted.... fantastic sounding and essentially indestructible with Thermal overload protection, Short circuit protection and Output transition SOA protection. Pictures to appear soon |
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Post by PinkFloyd on May 28, 2009 12:06:21 GMT
Now that I am having the printed circuit boards professionally made I have decided to reduce the price of the Little Pinkie V to £100, which is inkeeping with the rest of the Pinkie range. The PCB's save a lot of time, make a tidier job and the time saving can be passed on as a reduction in price.
I will update my website with the price reduction as soon as I return home.
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I wat to use them both in combination but don't want the table full of pinkys 
