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Old 2nd February 2012, 09:13 PM   #561
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why waiting

L'amp Part2 and Part 3 together ......... ?

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Old 3rd February 2012, 03:18 AM   #562
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Part deux is up... A fun read!

Thanks Mike!
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Old 3rd February 2012, 06:10 AM   #563
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Old 3rd February 2012, 06:50 AM   #564
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great news, this one could fit the bill? Hammond 193V Choke 150mh 3a 1ohm DC not so expensive
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Old 3rd February 2012, 11:10 AM   #565
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Old 3rd February 2012, 12:09 PM   #566
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I know a couple of readers had their hearts set on something active, so here you go:

L'Amp CCS Addendum
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Old 3rd February 2012, 12:17 PM   #567
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nice! what difference on sound vs choke ?

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on tube ,for some choke is preferred to ccs ,less dry/analytic
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Old 3rd February 2012, 12:25 PM   #568
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The CCS versions I have listened to sound very good, but in my opinion don't sound as "big" or as "snappy" as their passive counterparts.

In that sense, they sound a bit more "conventional" while maintaining a touch of the SIT magic. The midrange is particularly nice.

For the moment, I still prefer the big dumb versions.
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Old 3rd February 2012, 12:45 PM   #569
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Thank you Michael. But, I can't get the CCS link from work
Hey, Some time back I played with the ZenV9 circuit using a big Hammond choke load instead of Aleph. Actually, I think it worked quite well. But, 1 thing that it did do that is somewhat of a problem is it made physical, vibrational noise with signal. It was a frequency/amplitude sesitive thing (maybe started around 3k?) but, quite audible. I believe they were spec'd well enough for this amp (3-5A, .64 ohm, 100+mH IIR)
You might never notice this phenomina unless you test with a resistor load. Have you noticed this problem? Can you hear your amp without any speakers?
I don't know if it's the E-Core Lams or the windings or? I wonder if impregnating epoxy resin into the windings will stop this or?
Great work! But, ya know, I was kinda hoppin you where gonna duex a mu follower or somthin?
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Old 3rd February 2012, 02:34 PM   #570
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This is not an issue with a big, heavy ga. air-core.

Iron is another matter, though.

Be sure to grab that pdf when you get home.
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