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Old 19th July 2012, 07:12 PM   #171
Variac is offline Variac  United States
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Papa sez it would be easy to change the feedback of the amp to get 6.5 ohm output resistance. Then it would work perfectly with this awesome full ranger:

Arpeggio Loudspeaker

the new version of the Fostex driver is very similar to the old but not identical. We should check the math and see if it is significant. He gave us all the tools
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Old 19th July 2012, 08:58 PM   #172
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Quote:
Originally Posted by Variac View Post
Papa sez it would be easy to change the feedback of the amp to get 6.5 ohm output resistance. Then it would work perfectly with this awesome full ranger:

Arpeggio Loudspeaker

the new version of the Fostex driver is very similar to the old but not identical. We should check the math and see if it is significant. He gave us all the tools
Whao; a one-stop experience/diy article to understand, appreciate and build an awesome full range loudspeaker to mate with the Camp Amp.
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Old 19th July 2012, 10:53 PM   #173
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Quote:
Originally Posted by Variac View Post
Papa sez it would be easy to change the feedback of the amp to get 6.5 ohm output resistance. Then it would work perfectly with this awesome full ranger:

Arpeggio Loudspeaker
A thumbnail calculation sez that R12 = 100K would just about do it.

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Old 20th July 2012, 01:31 AM   #174
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A thumbnail calculation sez that R12 = 100K would just about do it.
I often quote myself as I find it adds spice to my conversation.

Oh look! I found a couple of stills from the Amp Camp footage.

On the left, moderator Variac and on the right Jason, the founder of DIYAudio.

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Old 20th July 2012, 01:39 AM   #175
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Nice shots! I was just wondering today who started DIY Audio. Thanks
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Old 20th July 2012, 05:12 AM   #176
Zen Mod is offline Zen Mod  Serbia
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like Universe , DiyAudio just - started ........... and nobody grasps it's nature .......

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Old 20th July 2012, 07:54 AM   #177
Skorpio is offline Skorpio  Denmark
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If using a standard SMPS, will the best way to place this a cable lenght (1-2m) from amplifier or close (inside chassis)?
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Old 20th July 2012, 07:57 AM   #178
nr12 is offline nr12  Germany
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the universe is still expanding, isn't it??

By the way, if you get some notebook SMPs look for supplies without a third pin, often called the "smart pin". This is common since about 2007 I think.
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Old 20th July 2012, 07:58 AM   #179
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Just leave it outside the case
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Old 20th July 2012, 08:34 AM   #180
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Quote:
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Funny you should ask about the 3PD02200. In my testing, it's typically 20'C above the ambient temperature, plus or minus 2'C.
My Hero.

Goes to show what the Modushop heatsinks are really capable of, diddly squat better than e.g. a Fischer SK47.
Aka 1C/W for 80mm implies that the 200x40x210 mm heatsinks can do no better than 0.60C/W (and the 250mm wide no less than 0.50C/W)
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