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Post by PinkFloyd on Oct 17, 2010 9:24:13 GMT
Hopefully it's at the back? Tooth ache is sheer misery. The pain is indescribable. You've been remarkably quiet about it Mike tbh. I thought you'd have a rage and a rant on here because if it were me, I'd be screaming blue murder, even on the internet!!! I have such a big gob you see. Front lower Ian. I have been very quiet (for a change) mostly curled up in a ball, in absolute agony (real climbing the walls type of pain)..... it's more of a dull thump now that the antibiotics have statred to kick in.... I put my finger on the swelling and it has actually developed a pulse! You can feel it going b-boom, b-boom, b-boom and if you press on it it feels as if the top of your tooth is going to explode under the pressure.... I wouldn't wish this on anybody. Thankfully the tramadol, dihydrocodiene and nurofen are keeping it down to a low dull throb and the antibiotics are stopping it from getting any worse though they aren't clearing it up.... it's either going to be root canal or extraction so I will definitely be getting it whipped out tomorrow.... they say it's not a good idea to use anaesthtic on an infected area so even if it means extraction without anaesthtic I'm going for it. Christ, I look like Marlon Brando in the Godfather.... I've got to get this thing drained pronto!
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Post by PinkFloyd on Oct 17, 2010 9:25:53 GMT
Sadface I've just finished populating the board with resistors and there are 5 missing. I've left a message for the guy on ebay. Looks like everything else is there though so I guess I can start putting in the rest of the smaller components. Bummer.... that's so annoying when that happens! What values are missing? Mike.
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Chris53
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Post by Chris53 on Oct 17, 2010 10:12:11 GMT
Hopefully it's at the back? Tooth ache is sheer misery. The pain is indescribable. You've been remarkably quiet about it Mike tbh. I thought you'd have a rage and a rant on here because if it were me, I'd be screaming blue murder, even on the internet!!! I have such a big gob you see. Front lower Ian. I have been very quiet (for a change) mostly curled up in a ball, in absolute agony (real climbing the walls type of pain)..... it's more of a dull thump now that the antibiotics have statred to kick in.... I put my finger on the swelling and it has actually developed a pulse! You can feel it going b-boom, b-boom, b-boom and if you press on it it feels as if the top of your tooth is going to explode under the pressure.... I wouldn't wish this on anybody. Thankfully the tramadol, dihydrocodiene and nurofen are keeping it down to a low dull throb and the antibiotics are stopping it from getting any worse though they aren't clearing it up.... it's either going to be root canal or extraction so I will definitely be getting it whipped out tomorrow.... they say it's not a good idea to use anaesthtic on an infected area so even if it means extraction without anaesthtic I'm going for it. Christ, I look like Marlon Brando in the Godfather.... I've got to get this thing drained pronto! It sounds a particularly bad one Mike. The last time I had one several years ago it was quite a bit better after 5 days of antibiotics but the pain was still there for another week or so. It wasn't the throb throb throb pain that it was at first but still pretty distracting. That initial pain is so bad though. You've brought back to the surface a vivid memory that I had pushed to the back of my mind. Most dentists wont touch it all until the abcess is gone. I think yours is unusual. From the pain you are in it does sound the best answer though.
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Post by Deleted on Oct 17, 2010 10:13:42 GMT
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Chris53
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Post by Chris53 on Oct 17, 2010 10:52:10 GMT
dammit Mr Rabbit you've pushed all my envy buttons with those pics
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Post by Deleted on Oct 17, 2010 10:53:18 GMT
Unless your going to buy me one Ian, i will leave now then.
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Post by Deleted on Oct 17, 2010 10:59:44 GMT
Unless your going to buy me one Ian, i will leave now then. Honestly Mick, it's drop dead gorgeous. A superb sound and Mike has taken massive care over the build. I took a peek. There's no way I can do a job like that. I feel really lucky to have a friend like Mike who's been so willing to help me hear one of these. Yours will be done soon? Be prepared for a real treat. You guys are so talented, getting it together like that. This amp is a work of art. It catches the attention of everyone who comes into the room with the gold knob and then when they listen, watch their faces!! dammit Mr Rabbit you've pushed all my envy buttons with those pics You know, looking at it in real life makes you feel that the pictures just don't do it justice! I'm almost jealous of myself. It's such a strong sounding, solid piece of kit. I've been playing around with the 38 ohm adapter that Mike gave me with the amp in order to ensure 120 ohm out for headphones that need to see 120. Not sure about this but I wasn't too fussed about the K701 and could barely hear any difference but the Sennheiser, I think, is slightly different and perhaps a tad more balanced. To detect it, I have to hold my breath and do three anti-clockwise turns, but I think the difference is more to do with the bass than the treble, which is why I wasn't that fussed with the K701. I think that the HD600 may be a fraction less weighted in the bass but it retains the same attack on bass notes. It's a gnat's whisker if it is actually there, but I've tried listening with a telescope on my ear and holding my breath as I said earlier. It may be just a tad more 'balanced' with the adapter on with the Senns, but don't quote me anywhere 'cos I might be laughed at. Well, it's a shame not to use the adapter when it's sitting there .... Waste not want not, but it may be something to consider before you all bolt the lids down.
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Post by PinkFloyd on Oct 17, 2010 21:52:14 GMT
Looking good Ian What about a matching green "GO" LED on the X-10D? Have you got the piglet connected to the Panda? (Piglet was MF's codename for the X-10D by the way I would imagine the Piglet would make a fair bit of difference compared to Solo Panda? When I say "difference" I don't mean improvement... it should just make the presentaion slightly different? I don't have a Piglet here at the moment but will have a good listen next time one is in the house. Your findings are much the same as mine re: 75ohm V 120ohm.... you'd need to have ears like a bat to detect any difference (if any).... overall, listening to a few pairs of headphones, I would say the addition of the 120R output made things slightly more neutral / sterile but, like you, found the change to be so subtle I rendered it negligible and it could have been an "additional connector inline" preconceived negative placebo type of thang I will be experimenting with very low output impedance on Panda three.... now I've got the feel of the animal I feel I can get up close and start prodding it without it biting my hand off... takes years to get intimate with a Panda (or a Piglet) and it's all about small steps. Hopefully, this time next year, the Panda will have evolved into the Super Panda, the "Mama Honking Panda" All about evolution, not revolution, so your Panda will be able to join the party and keep up with the "in crowd" Panda's with a few simple part swaps.... Save the Panda? I'm doing my best and hope we see them breed like Rabbits.... power to the Panda baby!
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Post by Deleted on Oct 17, 2010 22:23:39 GMT
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Post by Deleted on Oct 18, 2010 4:43:45 GMT
The little piggy adds a little more weight. It also allows me to keep plugging in/out without touching the inputs on the amp. Don't want to wear any of that rare earth 68 carat gold off. I place a little tray underneath the plugs in case I shed any of that precious gold. There's so much in there, I'm thinking of going in as a prospector. I was listening to some Bach last night and it is so impressive with orchestral stuff. I always find orchestral music points out stuff much more readily than electronic what with more 'acoustic' clues and placing of the image. It's a really good listen and stereo placing is in fact, very strong. It's pretty easy to hear depth in the soundstage as well.
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Post by PinkFloyd on Oct 18, 2010 21:41:09 GMT
Back from the dentist with more antibiotics... he didn't want to "go in" as the X-ray showed there was still a fair bit of infection present. I'm happy in a way as there are NO dentists where I am, there was a private outfit which have recently disappeared as they fiddled the taxman.... anyways.... to get taken on with the "travelling" NHS dentist usually takes about 5 years as there is a long waiting list. To cut a LONG story short, I have been campaigning for more more buses in the area and have got quite friendly with the local MP's secretary..... I told her all about my tooth problem AND the fact that not only could I not get a bus to the dentist (as there are only two buses per week) but I couldn't get to a dentist in town as there weren't any! I got an email back saying she had been in touch with "XYZ" and had organised for me to see the emergency "travelling dentist" (this was the appointment today)...... I wasn't looking forward to it as a few people have said he was operating out of a porta cabin..... another bloke said he was practicing in a "lorry" It turns out it is a state of the art "mobile" dental unit.... I couldn't believe how nice it was when I went inside, it was like a tardis.... all mod cons and even a small "waiting room".... 100% kosher and very confidence inspiring. The Dentist had a nice touch (ie: not a boy straight out of dental school) and deffo knows his onions, I have utter confidence in him, he is going to do the full monty root canal next Monday The best news for me came when he said "by the way, you are now on our books as a permanent patient" I have been waiting three years to get a NHS dentist and am so happy I am now registered with one It's not so much a lack of dentists that is the problem it's the fact that they don't want to come so far north.... they prefer to practice in the big cities for some obscure reason (possibly so they can extract large wads of money as well as teeth)..... Well, I am over the moon that I am now a registered patient of the mobile dentist A local guy, by the way, went to the "big city" to learn his trade and has come back with a set of drill bits to torture his enemies with..... no, seriously, he seems a top notch bloke and I have utter faith in him.... not very often I say that about dentists
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mrarroyo
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Post by mrarroyo on Oct 19, 2010 0:30:12 GMT
Let's make it compulsory to have one of these to be in RG!!!! . . . That will be the day that I cancel my membership of RG ! Yes! there is hope.
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Post by Deleted on Oct 19, 2010 9:22:08 GMT
Received my toroid the label on the side shows this:-
Blk 0 Red 18v Ora 0 Yel 18v
Can anybody confirm that this IS wired to the PCB terminal as photo, above shows.
Thanks
Mick.
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Post by Deleted on Oct 19, 2010 9:37:54 GMT
Mick The connections will depend on the manufacturer of the transformer, and colours will vary too. More often than not, there is a small diagram on the toroidal transformer. The bottom of the top winding is connected to the top of the bottom winding and becomes the centre tap, 0Volts (earth connection) in this case. Assuming that the 2 centre terminals of the connectors are joined together on the PCB, then this is correct for the transformer model that you have shown. Alex
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Post by PinkFloyd on Oct 19, 2010 10:50:33 GMT
Received my toroid the label on the side shows this:- Blk 0 Red 18v Ora 0 Yel 18v Can anybody confirm that this IS wired to the PCB terminal as photo, above shows. Thanks Mick. If it's a vigortronix transformer then yes..... that is correct.
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Post by Deleted on Oct 19, 2010 10:51:34 GMT
Mick The connections will depend on the manufacturer of the transformer, and colours will vary too. More often than not, there is a small diagram on the toroidal transformer. The bottom of the top winding is connected to the top of the bottom winding and becomes the centre tap, 0Volts (earth connection) in this case. Assuming that the 2 centre terminals of the connectors are joined together on the PCB, then this is correct for the transformer model that you have shown. Alex Hi Alex, The two centre terminals are not joined together on the board. terminal1 yellow in the photo 18v on my toroid has a wide track coming off it. Terminal2 orange 0v looks like it goes to ground on the board. Terminal 3 red 18v has a thin track leading off to the Led socket. Teminal4 black 0v also has a wide track leading off it. Mick.
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Post by Deleted on Oct 19, 2010 11:04:53 GMT
Its not obvious from the label what the make is Mike,, its an encapsulated one from Rapid 80va 18-18.
Is it right to say that terminal 1 yellow on your photo is 18v and terminal 3 red in your photo is 18v, the other two being 0v connections.
Mick.
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Post by Deleted on Oct 19, 2010 11:06:59 GMT
Mick The connections will depend on the manufacturer of the transformer, and colours will vary too. More often than not, there is a small diagram on the toroidal transformer. The bottom of the top winding is connected to the top of the bottom winding and becomes the centre tap, 0Volts (earth connection) in this case. Assuming that the 2 centre terminals of the connectors are joined together on the PCB, then this is correct for the transformer model that you have shown. Alex Hi Alex, The two centre terminals are not joined together on the board. terminal1 yellow in the photo 18v on my toroid has a wide track coming off it. Terminal2 orange 0v looks like it goes to ground on the board. Terminal 3 red 18v has a thin track leading off to the Led socket. Teminal4 black 0v also has a wide track leading off it. Mick. Mick In the schematic, CON2 shows the 2 inner terminals as connected together.(0Volts/Earth) Anybody using a different brand of transformer would need to carefully check before connecting up. Alex
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Post by Deleted on Oct 19, 2010 13:19:20 GMT
hi mike I'm using an un-potted 0-18v 0-18v, 80VA version of the TX you have . mine is from rapid (order code:88-3807) also and the labeling looks identical. i wired mine up as in mike's diagram above. it works for me take care
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Post by Deleted on Oct 19, 2010 17:20:58 GMT
hi mike I'm using an un-potted 0-18v 0-18v, 80VA version of the TX you have . mine is from rapid (order code:88-3807) also and the labeling looks identical. i wired mine up as in mike's diagram above. it works for me take care Thanks shaun, All i really need to know, is:- Are pins 1 yellow & 3 red the 18v connections. Its all finished apart from these connections. Mick.
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Post by Deleted on Oct 19, 2010 18:18:24 GMT
Here is things you can check:
Do not connect the 4 wires to the PCB. Take a multimeter set in it 'Ohms/resistance' setting. Connect meter to the board where Mikes pics show the red and orange will have to be connected to. (the middle 2 of the 4 points) This should read (close) to 0 Ohms.
Now twist or solder the white and black lead together (do not connect any wires to the board yet) Take your meter again and set it on AC voltage (200V AC setting or something)
Now power the transformer
Measure AC voltage between red and black/white. Should be around 20V AC
Then measure between black/white and orange Should read the same voltage 20V AC.
Then measure between orange and red. Should read double the voltage so about 40V AC.
If this is correct then power of the transformer
connect TX red lead to Mike's black connection point (corner connector) connect TX black next to it Mike's red connection (1 of the middle 2 connectors closest to the already connected wire. connect TX white to the other centre contact (Mikes orange wire) connect TX orange to the other corner connector (Mikes yellow wire)
This should do it.
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Post by PinkFloyd on Oct 19, 2010 19:24:28 GMT
Mick,
It is a vigortronix toroidal..... connect it exactly as shown in my picture.
Mike.
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Post by PinkFloyd on Oct 19, 2010 19:27:02 GMT
Basically you have 4 wires on the secondary.... the two outer ones go to 18V on the board and the two middle wires go to 0V.
Whatever the colours are on yours Mick.... twist the two middle wires together.... fire the transformer up. Now measure between both of the outer wires, it should read around 44V. Then measure between one of the outer wires and the two twisted wires... it should read about 22V.... do the same measurement between the other outer wire and twisted middle wires.... again, should read 22V.
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Post by bizzie on Oct 19, 2010 20:34:02 GMT
I finished putting the board together last night but it was getting late and I was getting tired so I left wiring the mains to the toroidal till today after I got in from work. After checking everything one last time I fired her up and went about checking the voltages as in the instructions they were both just over 1.2v so were adjusted to 1.2v easily enough then the dc offset set to zero. I have spent the last 2 1/2 hours listening to different albums via my Sqeezebox and have to say that Mike is absolutely spot on this thing is fantastic, very musical and vocals just seem to flow crisp and clear. Can't wait till its had a few more hours on it to see how it improves and I've built it stock with no upgrades not even the filter caps on the mains input. Listening to Van Morrison Astral weeks, best its ever sounded for me yet and thats from a valve addict
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Post by Deleted on Oct 19, 2010 21:31:39 GMT
I have been riveted to mine since it arrived from Mike. It's a beautiful listen imo. Warm, rich and detailed.
I've been doing a lot of listening on the HD600 since I tend to use that one as an 'average/medium' type of headphone to get a feel for others. It drives them really well.
The K701 sounds mellow through it and very balanced. It has to be cranked up very high to drive them to any serious volume since they do take a lot of power to fire them up.
I'm rediscovering my CD collection through that amp!! It's also changed my views entirely on the K701 in particular. They are absolutely superb through the Panda.
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