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Old 27th March 2013, 06:40 PM   #2551
troystg is offline troystg  United States
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Quote:
Originally Posted by K-amps View Post
Subtle or Arbitrary reaction.


or maybe try wiki: Let me google that for you
Too funny...
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Old 27th March 2013, 06:57 PM   #2552
troystg is offline troystg  United States
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I'm well, but I think the home life balance was out of whack before that... The GB and the purchase of an 03 Honda Magna were part of my way of poking the bear... :-)
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Old 27th March 2013, 07:09 PM   #2553
troystg is offline troystg  United States
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Originally Posted by K-amps View Post
See there you go again.... you never call em "Bear" or "Whale" or any such epitaph regardless of the accuracy of such a call...
Now I call her "ex"... The kids and I are much better off now too.


EDIT:

And yes the moderators are MORE than welcome to delete these posts. (wish they could delete the ex too..... )
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Last edited by troystg; 27th March 2013 at 07:11 PM. Reason: Delete posts...
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Old 27th March 2013, 07:17 PM   #2554
K-amps is offline K-amps  United States
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OK I will save them the effort... will delete all my posts... the idea was to inquire of your welfare... Task accomplished.
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Old 27th March 2013, 08:20 PM   #2555
troystg is offline troystg  United States
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OK I will save them the effort... will delete all my posts... the idea was to inquire of your welfare... Task accomplished.
No, wasn't for meant for you.. I just figured everyone else didn't want to see our conversation in a Krell thread....
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Old 12th April 2013, 02:07 AM   #2556
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Quote:
Originally Posted by Fix View Post
Just a quick post, and a hello !

My amp still works fine and I used it for many many hours.
Still impressed.

Might build another... :-)
Hmmm, "might build another" I like your idea

Finally, I have started to move forward with my own projects.
This night I managed to get one main board to work. I just connected the finished board to the DC power source and checked with 2 x Amp meters
for to have control over current/power drawn. It looked fine in the very first and I checked the DC output. I had to trim the bias pot to max bias for to get some current readings. At the maximum bias set it draw only 83 mA and the total power was calculated to be approx 9 watts. But that was enough for to check everything, also the functions.

No DC on output, OK. Then I installed a resistor, 4W/1 kΩ paralleled over the output and GND and then I connected a function generator to the input

I checked with a sin wave at the first and everything looked good so far.
At a frequency of approx 170-200 kHz the output swing started to go down but that was Ok if taking to account the feedback capacitor

Then I also checked with a square wave and that was really good. I was a little bit curious of how it should behave if driving the amp with a square wave. And there was no surprises to see...

This main board was the first one ever checked and tested so from my point of view it looked promising for the 5 left..... I have a total of 6 main boards

Below are a few pictures of the test set up and of the mainboard under test.
Attached Images
File Type: jpg Mainboard KSA100.jpg (248.6 KB, 521 views)
File Type: jpg 2 x 83 mA.jpg (326.8 KB, 504 views)
File Type: jpg 2 x 52V DC.jpg (95.9 KB, 462 views)
File Type: jpg 20 kHz.jpg (113.5 KB, 445 views)
File Type: jpg 20 kHz Square Wave.jpg (357.9 KB, 437 views)
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Old 6th May 2013, 08:32 PM   #2557
alibear is offline alibear  United Kingdom
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Hi all, I know I am very late to try to get started on the ksa100 ( I have been building the ksa50) but are there any P Watts PCB's available? Would prefere bare boards but if populated I would still be interested.
Thanks
Alan
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Old 7th May 2013, 06:58 PM   #2558
spurlte is offline spurlte  United States
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Default PCBs

Quote:
Originally Posted by alibear View Post
Hi all, I know I am very late to try to get started on the ksa100 ( I have been building the ksa50) but are there any P Watts PCB's available? Would prefere bare boards but if populated I would still be interested.
Thanks
Alan
Check out our thread @

http://www.diyaudio.com/forums/solid...ml#post3482136
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Old 8th May 2013, 11:20 AM   #2559
sibbeli is offline sibbeli  Sweden
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Hi! Is there some kind of compilation of material surrounding this amp? It is a big thread and a lot to sip trough to get grip of what is needed, where to get etc.

I am thinking of maybe building it. If i am going to build a new amp, why not make it a good one.
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Old 8th May 2013, 11:23 AM   #2560
AndrewT is offline AndrewT  Scotland
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If you are serious about your project, then reading the existing Threads is a "must do".
You really have no choice.

If you want to be spoon fed, then I 'm not volunteering.
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