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Old 11th September 2009, 03:16 PM   #911
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Cviller -- a little OT -- but the New Jersey Audiophile Society also supports the same charity through a bike-ride.

I am just recovering from getting "doored" as a gal opened up her SUV as I was zoomin' past.
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Old 11th September 2009, 03:56 PM   #912
cviller is offline cviller  Denmark
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Quote:
Originally Posted by ra7 View Post
any thoughts on making F4 pcbs?
I'm quite sure I'll make them within not too long. I'll make two mirrored boards for two channels with fets on only one side of the board. They'll look kinda like this:

http://viller.eu/audio/2007mar_f4/assembly/P1040566.JPG
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Old 11th September 2009, 03:59 PM   #913
cviller is offline cviller  Denmark
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Quote:
Originally Posted by jackinnj View Post
Cviller -- a little OT -- but the New Jersey Audiophile Society also supports the same charity through a bike-ride.

I am just recovering from getting "doored" as a gal opened up her SUV as I was zoomin' past.
That is horrible - and it happens way too often.
I'm always a bit nervous when riding past a row of parked cars...
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Old 11th September 2009, 11:02 PM   #914
Renron is offline Renron  United States
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Originally Posted by cviller View Post
You want to measure the current through the mosfets, which is most easily done by monitoring the voltage drop over R12, so YES, you connect the meter to both ends of R12. (and R11 later)
Thanks Chris, that's what I thought. Always good to be sure and ask thou.

Ron

Jackinnj,
Sorry to hear about your crunch, I hope you are recovering quickly and completely. Been there myself.....not fun.

Last edited by Renron; 11th September 2009 at 11:21 PM.
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Old 15th September 2009, 10:22 PM   #915
ra7 is offline ra7  United States
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received boards yesterday. They look so great. It'll be such a joy to work on these.
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Old 18th September 2009, 05:25 AM   #916
cviller is offline cviller  Denmark
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I got the silly cn22 forms today, so I have finally been able to ship all the pending orders.

I'll keep the site http://viller.eu/gb open as long as I have boards left.
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Old 18th September 2009, 08:15 PM   #917
rtate is offline rtate  Canada
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Do you think that these heatsinks would work for the F5??

http://cgi.ebay.com/Aluminum-Large-H...OSFET-8x6-7-8_
W0QQitemZ150370749072QQcmdZViewItemQQptZLH_Default Domain_0?hash=item2302cb8a
90&_trksid=p3286.c0.m14
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Old 18th September 2009, 08:23 PM   #918
cviller is offline cviller  Denmark
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Quote:
Originally Posted by rtate View Post
Do you think that these heatsinks would work for the F5??

http://cgi.ebay.com/Aluminum-Large-H...OSFET-8x6-7-8_
W0QQitemZ150370749072QQcmdZViewItemQQptZLH_Default Domain_0?hash=item2302cb8a
90&_trksid=p3286.c0.m14
I think you'll be able to make it work with one per channel.
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Old 18th September 2009, 11:45 PM   #919
rtate is offline rtate  Canada
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Thanks Chris, When you say 1 per channel do you mean one for each output device or one for each channel being left and right.

I am concerned that they may be a little small being only 8" wide

I would rather have "overkill" than "overheat"
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Old 18th September 2009, 11:48 PM   #920
cviller is offline cviller  Denmark
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Quote:
Originally Posted by rtate View Post
Thanks Chris, When you say 1 per channel do you mean one for each output device or one for each channel being left and right.

I am concerned that they may be a little small being only 8" wide

I would rather have "overkill" than "overheat"
I hoped you would say that!
I meant two for a stereo amp, but you will be close to the margin, I think. So make a nice box with four....
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