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Author Topic: New D-lator build 3 test configurations  (Read 32313 times)
Steven_nl
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« Reply #15 on: July 23, 2009, 11:24:06 AM »
cool you'll end up with 4 great units  Tongue
GAS allready LOL
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erwin_ve
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« Reply #16 on: July 23, 2009, 03:47:31 PM »
Today I finished the last one loaded with CDE DME. It's name is from a notorius pre 70-ies coffee machine  Smiley

* Percolator5.jpg (39.39 KB, 907x169 - viewed 2432 times.)

* Percolator2.jpg (104.17 KB, 920x561 - viewed 1685 times.)

* Percolator1.jpg (36.51 KB, 921x163 - viewed 692 times.)

* Percolator4.jpg (57.16 KB, 921x280 - viewed 1450 times.)
« Last Edit: July 23, 2009, 04:53:15 PM by erwin_ve » Logged
mcinku
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« Reply #17 on: July 23, 2009, 04:41:51 PM »
Good job... now we want test results.....ASAP  Grin


 Wink
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erwin_ve
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« Reply #18 on: July 23, 2009, 04:44:55 PM »
Quote from: mcinku on July 23, 2009, 04:41:51 PM
Good job... now we want test results.....ASAP  Grin


 Wink

Tomorrow I'm gonna double check every connection, then a 2 week summer holiday, then extensive testing...keep you posted Tongue
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mcinku
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« Reply #19 on: July 23, 2009, 04:52:18 PM »
Can't wait to hear what is the outcome...


... my guess is, the difference is going to be minute
 Wink
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erwin_ve
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« Reply #20 on: July 24, 2009, 12:20:25 PM »
Quote from: mcinku on July 23, 2009, 04:52:18 PM
Can't wait to hear what is the outcome...


... my guess is, the difference is going to be minute
 Wink
Just tested them at moderate volume.
First impression: They sound/feel very different.

Xicon MPP; couldnt get it smooth, maybe at higher volumes. Lows were not tight.

Orange drop 6PS/225P: Lower volumes were same as Xicon MPP. At moderate volume lows got more tight and highs were smoothed out. Nice mid range!

Cornell Dubilier CDE DME: Smooth at all volumes, these caps produced the most tight lows. Less pronounced mids compared to the Orange drops. Did I mentioned these caps are really smooth?


Coming weeks I'm gonna test them in real life. Keep you posted
« Last Edit: July 24, 2009, 12:26:00 PM by erwin_ve » Logged
erwin_ve
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« Reply #21 on: July 24, 2009, 02:50:45 PM »
I have a bad day: turns out on 2 dlators the bright switches at the output section were shorting, I had to disconnect them otherwise the bright caps are constantly on.
The dlators affected: with Xicon and with Orange drops.

Xicons are smooth now too  Undecided
Orange drops still got the pronounced nice midrange.
The CDE are the closest to the Orange drops but still have the tightest bass response
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mcinku
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« Reply #22 on: July 24, 2009, 07:46:17 PM »
Interesting...

...we expect some clips... they are coming, right?
 Wink
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erwin_ve
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« Reply #23 on: July 24, 2009, 07:54:03 PM »
Quote from: mcinku on July 24, 2009, 07:46:17 PM
Interesting...

...we expect some clips... they are coming, right?
 Wink
Tomorrow going on a 2 week holiday; clips after the holiday Cool
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brickcues
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« Reply #24 on: August 23, 2009, 11:26:43 PM »
 Huh?  What happened to the test? Cry
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bluesfendermanblues
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« Reply #25 on: August 24, 2009, 08:32:01 AM »
Quote from: brickcues on August 23, 2009, 11:26:43 PM
Huh?  What happened to the test? Cry

+1  Huh?
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Respect for the big guy's work....we're at this part of the forum because of HAD's amps.
erwin_ve
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« Reply #26 on: August 24, 2009, 08:43:29 AM »
Quote from: bluesfendermanblues on August 24, 2009, 08:32:01 AM
Quote from: brickcues on August 23, 2009, 11:26:43 PM
Huh?  What happened to the test? Cry

+1  Huh?

This friday I make clips. Just a little patience Grin
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bluesfendermanblues
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« Reply #27 on: August 24, 2009, 10:59:42 AM »

This friday I make clips. Just a little patience Grin
[/quote]

OK,
I enjoyed your D'later/Klein comparison file.

And I wonder if the Klein could be modified to sound like a D'lator, by adding

- 500p/220k intrance filter 
- 44m/50n LNFB network

to FET2. What do you think?
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Respect for the big guy's work....we're at this part of the forum because of HAD's amps.
erwin_ve
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« Reply #28 on: August 24, 2009, 11:07:48 AM »
Quote from: bluesfendermanblues on August 24, 2009, 10:59:42 AM

OK,
I enjoyed your D'later/Klein comparison file.

And I wonder if the Klein could be modified to sound like a D'lator, by adding

- 500p/220k intrance filter 
- 44m/50n LNFB network

to FET2. What do you think?
Thnx!
Maybe it will do the job. In the pics on the CT website the 220k/500pF is already incorperated. I tested the commercial CT version so I guess it's the same, older Public domain is different.
Fet with NFB? That has to be calculated: The voltage swing on a tube based design is somewhere between 20 and 70 volts.  The FET design: don't have a clue: max 20v.?
However  the tube compression is difficult to emulate with FET.

I'm done with the Kleinulator, it's such a different feel when playing through it compared to the real thing. For me: tubes all the way

BTW my last 3 d-lators builds have a slightly lighter filtering compared to my first one. And I like that better. It's less stiff.
« Last Edit: August 24, 2009, 11:41:28 AM by erwin_ve » Logged
erwin_ve
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« Reply #29 on: August 27, 2009, 09:21:36 PM »
Testing will be delayed by a week; I have some gigs and have to rehearse...
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