steenoe said:Jason, you can have a look at my crude Zen, and yes, it plays the trousers of any chipamp It sounds wonderfull I threw it together last saturday
Steen.
Nice bit of Kit there Steen
Anthony
Banned
Joined 2002
steenoe said:
As a matter of fact, I did do that Take a look at this hardware
I intent to make a CLC PSU for the ZEN amp, with that. What do you think? Well, the Zen sounds so great, that I think it deserves a decent supply. I hope to get my mate, Magura to do me a couple of his nice coils, for it Also I did today get some 6mm2 lead, that will be used instead of the skinny ones on the pic! I have great hopes
Steen.
BTW it runs hot, but not too hot
I my self like Teflon wire.
jleaman said:
I my self like Teflon wire.
I think that's got more to do with the fact that you don't want anything sticking to you Jason.
Regards
Banned
Joined 2002
Nobody wants to push Kari, but I would second thatHello Kari, any progress updates?
Steen.
Banned
Joined 2002
joe said:Hi Kari,
your layout looks fantastic. Great work. Could you send me the eagle files if you want to share? Why didn´t you made the ground traces as wide as you can? It won´t hurt.
Thanks
joe
a.joedicke(at)gmx.net
I would like to be included in this email too...
jleaman said:
I would like to be included in this email too...
I think Kari already stated earlier in the thread that he would not be releasing the files at this time.
Anthony
So do I.I think Kari already stated earlier in the thread that he would not be releasing the files at this time.
Mind you guys, watch your steps carefully. Kari is doing a great job, dont push anything
Steen.
That's serious heatsinking That ought to keep them mosfets cool. Looks really good that preamp, you are working on there. Are you gonna use all 6 channels for biampingAnother take on the "thermally coupled" idea.
Steen.
Edit, I just found your thread on the 6 channel BosoZ
Are you gonna use all 6 channels for biamping
Indeed, I have three stereo amplifiers---2 Mark Levinson no. 27's and a no. 29---and some crossover-less speakers I cooked up a while ago (see attached photo).
I just got the BOSOZ running and my IR thermometer tells me the heatsinks are running at about 55C... and the pair of 3W 750 ohm resistors are running at about 90C.
Do I need heatsinks for those resistors!?!!
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Henry, thats quite a setup, 3 ML's And that speaker is beautyful. Very nice woodwork.
Wonder how hot the mosfets are running with the normal Clip-on heatsinks? If yours are 55C, with that amount of heatsinking.
The resistors are best kept a distance from the pcb, to ensure a little more airflow around them.
Steen
Wonder how hot the mosfets are running with the normal Clip-on heatsinks? If yours are 55C, with that amount of heatsinking.
The resistors are best kept a distance from the pcb, to ensure a little more airflow around them.
Steen
Finally some progress on the powersupply. I've been busy with a Unix project here at work so that's why there hasn't been any updates for some time.
For the rectifier part i've added the posibility to have snubber caps if you go with for ex. 1n4004 diodes. The big caps are snapin type so you can choose whatever cap you like and it will fit, dia of the footprints are now 35mm with a 10mm pitch. On the - side you should choose zeners that are ~4V + your intended output.
What do you think?
/Kari
For the rectifier part i've added the posibility to have snubber caps if you go with for ex. 1n4004 diodes. The big caps are snapin type so you can choose whatever cap you like and it will fit, dia of the footprints are now 35mm with a 10mm pitch. On the - side you should choose zeners that are ~4V + your intended output.
What do you think?
/Kari
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