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Old 10th January 2007, 03:09 PM   #51
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ok, I am sending out for some prototypes -- i.e. without silkscreen to make sure that they work as planned -- the footprint is 4" x 2" ( x y ) -- the dual comparator is an LM319 -- the final will have silkscreen.

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Old 11th January 2007, 02:24 PM   #52
AR2 is offline AR2  United States
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Great news! Looking forward.
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Old 12th January 2007, 01:52 PM   #53
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ditto
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Old 30th January 2007, 11:29 PM   #54
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this is one of the protos I got back -- i think that it can be dimensioned to about 3 inches on the X-Axis -- I am still not done checking them out -- apologies to Linear Tech -- but I used an LM319 dual comparator for two channels. Two of the linear devices would fit in about the same space.

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Old 19th March 2007, 07:26 AM   #55
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I designed my first two sided board from the schematic by Jon Munson and Jackinni at the beginning of this thread.

I was hoping that someone who is familiar with Eagle could give it a look-over for accuracy, clearances, etc., also a little help on setting up the Gerber files as well before I send it out for a prototype. I pretty much followed the components as illustrated at the beginning of this thread and created a new package/device for the IHSM-7832 SMD inductor. The MBR0520 (D3 and D4) diodes are a sod-123 package zener; I just didn’t want to design a new component for this (borrowed the correct config. from the library) and the CPMD6263S (which reads as a BAS 40-04) is correct as well. The board measures 4” X 3 1/4”.

Here is the .brd file and some pics…

Stan
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Old 19th March 2007, 07:27 AM   #56
sklimek is offline sklimek  United States
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Board pic...
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Old 19th March 2007, 07:29 AM   #57
sklimek is offline sklimek  United States
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Eagle .brd file...
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File Type: zip vu meter 3.zip (7.3 KB, 115 views)
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Old 29th March 2007, 03:04 AM   #58
sklimek is offline sklimek  United States
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Knock, knock, I slimed the board down to the best of my abilities. It now measures 2 5/8" X 3 1/4". I've checked and dbl checked, guess I'll send it out to see if it can fly. Here is new pic and can send .brd if anyone is interested.

Stan
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Old 12th April 2007, 05:51 PM   #59
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Default I am also interested.

Quote:
Originally posted by jackinnj
ok, I am sending out for some prototypes -- i.e. without silkscreen to make sure that they work as planned -- the footprint is 4" x 2" ( x y ) -- the dual comparator is an LM319 -- the final will have silkscreen.

Click the image to open in full size.

I am also interested

With blue leds
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Old 12th April 2007, 06:35 PM   #60
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well, I don't know if you will be happy with LED's -- the capacitor C6 has to discharge -- the discharge time depends upon the "ohms per volt" of the meter -- here's what the charge/discharge time looks like with a 1k resistor on C6 -- this is simmed -- i am havin a little difficulty getting the real protos of the boards to work:

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