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Old 28th October 2006, 11:19 PM   #31
Cobra2 is offline Cobra2  Norway
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I am interested in a couple...maybe more...

Arne K
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Old 21st November 2006, 02:14 AM   #32
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I am interested for some.

Peter
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Old 25th November 2006, 10:42 PM   #33
Nordic is offline Nordic  South Africa
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Jack, I need to borrow your brain...

Click the image to open in full size.
This circuit is for a 3500ohm movement, mine is only 650 ohm.

The instructions says to change R6, 7 & 8. to accommodate other meter resistances. I am at a total loss. My meter moves but is only deflecting the needle a tiny bit, (about one numbered unit) on the scale.

Can you offer guidance my learned solderer.
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Old 26th November 2006, 11:46 PM   #34
sklimek is offline sklimek  United States
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Hi, Interested in a board as well.

Stan
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Old 29th November 2006, 10:49 PM   #35
Minion is offline Minion  Canada
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I might be off bace here but wouldn"t a LED VU meter be cheaper and easier to implement??

There are quite a few designs available for a LED VU meter and there are many IC"s available for controlling The LED"s based on the DB of the input signal....

i know there is a Project and Boards availabel at the Prodigy pro forum and the Boards were only $4 and the Parts weren"t much more expensive......


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Old 29th November 2006, 11:12 PM   #36
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But they are not nearly so cool as these.
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Old 30th November 2006, 12:01 AM   #37
Minion is offline Minion  Canada
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I guess if your Going for the Retro Look then the standard Analogue meters are the way to go but i personally like LED VU meters better as you can arrange the LED"s in cool Patterns to say Spell something or make a Cool design.....


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Old 30th November 2006, 12:24 AM   #38
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Then you should buy the other meter driver boards. Folks that want moving needle meters are not much impressed with dancing LEDs.
Might be swimming against the tide on this thread.
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Old 30th November 2006, 04:50 AM   #39
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Some good buys on analog panel meters here too:
http://www.surplussales.com/Meters/MtrRF-wats.html
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Old 30th November 2006, 11:57 AM   #40
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Quote:
Originally posted by Minion
I guess if your Going for the Retro Look then the standard Analogue meters are the way to go but i personally like LED VU meters better as you can arrange the LED"s in cool Patterns to say Spell something or make a Cool design.....


Cheers
I wouldn't dissuade you from using the LED Drivers from National -- the schematic I described (with full credit to the folks at LinearTech who thought it up) provides something close to the right attack and delay times with pretty good dynamic range -- see the original EDN article.

I haved been really jammed up with my real job so haven't been able to get the prototypes done.
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