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New! WNA MKll Head-amp kit. - Page 3

post #31 of 760
Quote:
Originally Posted by PinkFloyd
I'll try and get a shot of a better camera Peter so you can see they are not "blobs" but smooth dome shaped joints
Yes, that would probably make me sleep a lot better

Another thing, does the 'full kit' for 160£ include a case?
post #32 of 760
Thread Starter 
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post #33 of 760
Thread Starter 
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post #34 of 760
Quote:
Originally Posted by StevieDvd
I'll agree with the strength of Pinkfloyds joints as I tried to de-solder some without knowing of the method he used. Several swear words later I managed to remove the component. I did ask Pinkie how he did his soldering so it won't catch me out in future.

Pinkie soldering is more like artwork
I need a recomendation for a soldering iron wattage for building PC boards and what-not. I've got a big 100 watter that I use for soldering up wires, but I know that will be too much and too big for PC boards.
post #35 of 760
Quote:
Originally Posted by KZEE
I need a recomendation for a soldering iron wattage for building PC boards and what-not. I've got a big 100 watter that I use for soldering up wires, but I know that will be too much and too big for PC boards.
This is the one i picked up after using my lame 25watt Weller pencil type. It's great becuase it has variable heat so if you have a thick lead you can turn it up a bit. Only $35 too!
http://www.circuitspecialists.com/prod.itml/icOid/7307
post #36 of 760
Quote:
Originally Posted by JHouser
This is the one i picked up after using my lame 25watt Weller pencil type. It's great becuase it has variable heat so if you have a thick lead you can turn it up a bit. Only $35 too!
http://www.circuitspecialists.com/prod.itml/icOid/7307
Ah, variable heat - I didn't even know they made such an animal. Thanks for the link, J-man, and I'll be ordering one of those ASAP.
post #37 of 760
Has anyone else used the $35 CSI Deluxe Soldering Station that JHouser has recommended?
post #38 of 760
Thread Starter 

LM7171

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post #39 of 760
Quote:
Originally Posted by Romanee
Has anyone else used the $35 CSI Deluxe Soldering Station that JHouser has recommended?
I have the CSI-Station 2 from circuitspecialists. It is basically the same iron, but instead of analog it has digital temperature control. It's a fantastic unit regardless of price. It heats up to 400c in about a minute and holds temperature extremely well. It also gives a temp indicator as it heats up and holds the temp, updated every half second. I can highly recommend it, especially because it can be had so cheaply... I believe under 50 dollars.
post #40 of 760
Thread Starter 
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post #41 of 760
Quote:
Originally Posted by PinkFloyd
This is not a soldering station thread, we are discussing a kit amp here thanks.
Well shoot, you need a soldering iron to put together a kit amp don't you?
Tell you what, if you're so sensative that it's a problem for you to allow us to make a few short posts in recommendation of a good soldering iron with which to put kit amps together, then I'm sorry to have bothered you.
post #42 of 760
Quote:
Originally Posted by KZEE
Well shoot, you need a soldering iron to put together a kit amp don't you?
Yes, but that's in no way specific to the WNA kit. There's a lot going on in this forum and it is of advantage to everybody if we try to keep it at least somewhat organized. If you're looking for info about a soldering iron, it's much better to start your own thread (if you don't find the answers you need already in the hundreds of old threads the search function will bring up). That way, people looking for info on the WNA kit won't have to wade through off topic posts like this one, your question will be seen and be able to be answered by a lot more people than just those interested in the WNA kit, and finally it can later be found much more easily by people smart enough to use the search button before posting. Everybody wins, including yourself.
post #43 of 760

LM6181

Hi,

My understanding from David's first attempt with the LM6181 last night is that the LM6171 is not way ahead of the LM6181 but that there is a barely discernible difference which David is rechecking today with a wider selection of music. Bare in mind the circuit has been tweaked extensively for the LM6171 and the LM6181 will take a week to break in if it's at all like the LM6171 which is very slow to reach it's full potential - if the the circuit is tweaked for the LM6181 it might also be a very different story. I will be interested to hear what others think about the LM6181 as David is trying this chip versus the LM6171 in his headamp as a precursor to substituting it into the custom built volume control and phono stage that he has put together for me. I found the only other serious competitor for the LM6171 is the AD825 which sounds more dynamic and rhythmic, a bit less grey and quicker in the mid-range but also a bit brash and not as tight at the frequency extremes. On balance the LM6171 nsounds better but ideally i would like to combine the best characteristics of both.

Regards,

Nick.
post #44 of 760
Thread Starter 
Hi Nick,

David has indeed been trying the LM6181 and he reckons it's a close run thing and isn't going to commit one way or the other until he's done some serious listening. I'll fire a couple into my WNA and have a good listen also.

I've tried the OPA 627, AD825, AD811, LM6171, OPA134, AD8610 and AD8065 in the WNA and the only one apart from the LM6171 I liked was the AD8065, I've got a couple of them kicking around somewhere so may have a listen with them on board again. I'll try the LM6181 first and report back on it

Mike.
post #45 of 760

lm6181

Thanks!

Ad8065 isn't stable in the WNA phono without major redesign - I suspect it's better than the AD825. The AD825 gave good results in the 2nd and 3rd stages of the phono - only chip to offer advantage over LM6171 in any area, as I described.

Nick.
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