Nordic
you can actually get everything from Mantech. they ask R 27 for the LM3886 and then they have very nice Rubycon 10 000uf 63v for R 25 each. you can build it for next to nothing. they will also ship it for you
you can actually get everything from Mantech. they ask R 27 for the LM3886 and then they have very nice Rubycon 10 000uf 63v for R 25 each. you can build it for next to nothing. they will also ship it for you
I got a few caps etc, allready from when I played with the 3875, granted not of the best quality but It'll get me started, mantech seems alot cheaper than RS, its just very hard finding stuff in their online catalog at times.
Byrd, no taxes or anything but that was on PCBs, don't know about kits...
Byrd, no taxes or anything but that was on PCBs, don't know about kits...
Since the kits are "Commercial Samples" there shoudl also be no taxes. Let me know what happens.
Nice one Brian. Looking forward to sampling those items 😉
Nordic - I agree that it is difficult going through their online search - I don't think they have implimented it very well, but there is an "offline" stocklist in excel format. This should be a bit easier to search.
http://www.mantech.co.za/downloads/stklist.zip
Nordic - I agree that it is difficult going through their online search - I don't think they have implimented it very well, but there is an "offline" stocklist in excel format. This should be a bit easier to search.
http://www.mantech.co.za/downloads/stklist.zip
Hi people im from Cape Town is the price the same down here ? for the IC i think 25 bucks for the caps are a great deal !! 🙂 🙂
Reactance - Yup should be the same price - there is a branch in C.T. aswell.
I received my package of PCB & components. PCB's are perfect quality and the labelling and neatness of packaging of all the components is really astounding. I just hope you're not using some sort of forced child labour Brain 😉
Pics of the package & contents available @ My Project Pics Site .
It won't take too long to complete. Probably do it on Saturday & report back.
P.S. The Sight & sound of reversed electrolytics is far worse than the smell of burned outtput transistors 😉
I received my package of PCB & components. PCB's are perfect quality and the labelling and neatness of packaging of all the components is really astounding. I just hope you're not using some sort of forced child labour Brain 😉
Pics of the package & contents available @ My Project Pics Site .
It won't take too long to complete. Probably do it on Saturday & report back.
P.S. The Sight & sound of reversed electrolytics is far worse than the smell of burned outtput transistors 😉
😀 and about ur project ....
Amazing man excellent work man I must say its nice to see my home boys are doing some great work !!!
Also do u make ur own pcb`s ?? im using vero board and its really sucks man !
Any idea if there a place in Cape Town that makes pcb`s ?? im trying to find one but non thus far !!! 😕
I dont know how to make pcb i would rather let somone do it for me ! yeah even though i do pcb in trakmaker just to pratice i guess and it sucks not being able to enjoy the wonders on a pcb !
Any cool man !
🙂
Nice pics! Good to see what kind of condition the package arrives in. Isn't it fun trying to neatly line up those resistors? I think your pics are better than mine!
Reactance said:
Any idea if there a place in Cape Town that makes pcb`s ?? im trying to find one but non thus far !!! 😕
I dont know how to make pcb i would rather let somone do it for me ! yeah even though i do pcb in trakmaker just to pratice i guess and it sucks not being able to enjoy the wonders on a pcb !
I can maybe help you out with a board. not as cool looking as the ones from Russ and Brian but it is tinned and sounds great.
i can give it for you at Approx R 80. the overnight charge i think is R 38 but i can also post it
Cheers
Rudi
Brian - Thanks very FUN 😉.
For this project I just ordered em from Brian & Russ. You could build your own PCB's but it is quite difficult to get them to come out nicely - especially if the board is double sided. Be carefull of veroboard, - not to say it doesn't work as I have had success with it - but I have seen nasty oscillations as a result of improper layouts / soldering.
There is a company in Capetown - Trax interconnect - that do good work, but if you are only planning on making a few channels it will likely be cheaper to get the boards from Brain/Russ. If you look on my site at the new Leach Amp boards - these were made by Trax. It was a R350 once off fee as well as +- R150 per board all excluding VAT. That was the price I got for 24 Boards though 😀
PS - whats progress on the preamp & source selector?
For this project I just ordered em from Brian & Russ. You could build your own PCB's but it is quite difficult to get them to come out nicely - especially if the board is double sided. Be carefull of veroboard, - not to say it doesn't work as I have had success with it - but I have seen nasty oscillations as a result of improper layouts / soldering.
There is a company in Capetown - Trax interconnect - that do good work, but if you are only planning on making a few channels it will likely be cheaper to get the boards from Brain/Russ. If you look on my site at the new Leach Amp boards - these were made by Trax. It was a R350 once off fee as well as +- R150 per board all excluding VAT. That was the price I got for 24 Boards though 😀
PS - whats progress on the preamp & source selector?
have a look at this site to make a simple PCB
http://homepages.paradise.net.nz/max.williams/pcbs.htm
http://homepages.paradise.net.nz/max.williams/pcbs.htm
Sorry got tired at page 30, where is the final circuit diagram for the Rev C? unfortunatley there was no circuit printout in the package (nudge, nudge, wink, wink), I assume connecting a component to every hole on the boards would not go down so well....
also with it haveing multiple ways of assembly it would be nice if you could make a list something along the line of
Rev A
Cx, Cy, Cz leave out
R1 replace with 56ohm
Rev B.....
also with it haveing multiple ways of assembly it would be nice if you could make a list something along the line of
Rev A
Cx, Cy, Cz leave out
R1 replace with 56ohm
Rev B.....
Thanks Russ, very fast, you can get back to the building guide now, 
PS the circuit you posted excludes the PSU?
PS the circuit you posted excludes the PSU?
Nordic said:Thanks Russ, very fast, you can get back to the building guide now,
PS the circuit you posted excludes the PSU?
PSU is basically the same as that for rev A at the beginning of the thread.
Give me a few and I will post a complete schematic from eagle.
Looking @ the schematic I see both the 318 and the 3886 are using the inverted inputs..
MANY people have commented on the 3886 sounding better using the inverted inputs..
Interesting... Mauro was this done based upon preferences or easier to implement?
MANY people have commented on the 3886 sounding better using the inverted inputs..
Interesting... Mauro was this done based upon preferences or easier to implement?
hi rabstg,
link @ My_tech.:
http://www.diyaudio.com/forums/showthread.php?threadid=62483
or more detail... but Italian Lang....:
http://www.audiofaidate.it/sito.asp?goto=my_ref
ciao
Mauro
link @ My_tech.:
http://www.diyaudio.com/forums/showthread.php?threadid=62483
or more detail... but Italian Lang....:
http://www.audiofaidate.it/sito.asp?goto=my_ref
ciao
Mauro