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WTB: F4 PCB boards

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jleaman

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cviller said:
You can use my design, if you like. Component numbers are the same as papas. It is single sided and the blue traces are gnd.
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Great new's. Do you think you can email me and we can talk about this more ? email at jase @ jasesspace .com its better for me to respond on that email address instead of the other one we are talking on.


Jase
 
J

jleaman

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Thanks for all the interest guys im working hard on this righ tnow to see what we can do about boards.

Questions tho..


Are people interested in psu boards too ? Im thinking i will continue to use Briangt's PSU boards.



Do we want one long board per channel 12" or smaller boards ?

I would love to hear some input.

Thanks guys.

Jase
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twitchie

twitchie

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cviller said:



Thought you Canadians used SI units... but you are right, 294mm is just under 12". ;)
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:D 12" ... I couldn't even print it since I don't have any legal paper (only letter 8.5x11)

This would be a good excuse to get those ebay heatsinks in 14" lengths though, or maybe a group buy for Conrad heatsinks maybe?

:angel:

I have one of Brian's PSU boards, and in the F4 schematic, it uses 60mF per rail, so 22mF caps wouldn't be too bad here.

The only drawback I am running into with Brian's board (which can easily be overcome) is my 18+18V transformer puts out 26.5V after rectification (because I get 122V out of my outlets), so I need to use a 100ohm series resistor to bring it down to ~22V - which I can't do using the onboard rectifier diodes (so I etched my own PSU board)
 
J

jleaman

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Joined 2002
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twitchie said:


:D 12" ... I couldn't even print it since I don't have any legal paper (only letter 8.5x11)

This would be a good excuse to get those ebay heatsinks in 14" lengths though, or maybe a group buy for Conrad heatsinks maybe?

:angel:

Stephen
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I'm working to get them smaller, but perhaps this would be good to keep them this way. I am aiming for 9" tho.

I'm able to do a group buy for heat-sinks, i can email my contact for heat-sinks if possible. we can lave the current boards at size we just need to get longer heat sinks. I don't know if the ones i am looking at will work tho as the fins go lengthwise not up and down.
 
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