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Old 28th May 2008, 08:53 PM   #921
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I am informed that the full review is now to be found at

www.6moons.com
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Old 28th May 2008, 09:07 PM   #922
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Default Congrats!

(again)

and thank you for sharing your passions and assistance to us all.

Best,

Chris
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Old 28th May 2008, 10:01 PM   #923
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That is a great review, a deserved flower for First Watt and Mr. Pass.

I'm working on this one Nelson... and thanks again for sharing so much.
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Old 28th May 2008, 11:11 PM   #924
Variac is offline Variac  United States
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Goffe,

Using the LED resistor to jump over a trace as James mentions is a good idea if necessary.

Attached is a photo of how Nelson does the Thermistor on his F5. It is from the Six Moons review, note how its pads are located.
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File Type: jpg thermistor.jpg (73.1 KB, 2549 views)
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Old 29th May 2008, 12:25 AM   #925
tms0425 is offline tms0425  United States
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Very nice review, so I definitely need to get hopping on mine.

New stuff also up a couple days ago on the FirstWatt site, but the link to the F5 manual doesn't seem to work today.

http://www.firstwatt.com/downloads/F5-om_sm-080527.pdf

The other to the AX article/tutorial works fine.

Thanks again for sharing this. Can't wait for the "B" products too. It should keep the faithful entertained and stimulated for some time.

Tom
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Old 29th May 2008, 05:05 PM   #926
Goffe is offline Goffe  Sweden
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I have made some changes but not finished yet. I still need to add LED and move R13/14 closer to the O/P fets.

Comment & suggestion please.
Thank you guys!
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Old 29th May 2008, 05:50 PM   #927
juma is offline juma  Serbia
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Hi Goffe,
If you want Q1 and Q2 placed face-to face, than the D and S of Q2 should trade places.
The IN and GND points too.
R1 and R2 should be at least 1W.
ZTX 450/550 have Collector as the middle pin.
What's C1 ?

Keep working, your PCB is getting better and better !
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Old 29th May 2008, 06:00 PM   #928
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Quote:

ZTX 450/550 have Collector as the middle pin.


I think ZTX 450 and 550 has BASE at the middle pin ;

With the printed face in front of you ,the left pin is collector .
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Old 29th May 2008, 06:11 PM   #929
Goffe is offline Goffe  Sweden
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Quote:
Originally posted by juma
Hi Goffe,
If you want Q1 and Q2 placed face-to face, than the D and S of Q2 should trade places.
The IN and GND points too.
R1 and R2 should be at least 1W.
ZTX 450/550 have Collector as the middle pin.
What's C1 ?

Keep working, your PCB is getting better and better !

Q2,IN, GND you are right juma, thanks!
My mistake

C1 are bipass cap from V+ to V-(maybe not necessary)
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Old 29th May 2008, 06:31 PM   #930
massimo is offline massimo  Italy
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Quote:
Originally posted by juma

R1 and R2 should be at least 1W.
??? ???
Why?
8 mA in each resistor squared * 10 ohms
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