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Old 14th September 2007, 07:45 AM   #11
Nordic is offline Nordic  South Africa
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7th in via e-mail...... come guys, aim for 20......
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Old 14th September 2007, 09:15 AM   #12
Harry3 is offline Harry3  Australia
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Hi,
I will buy one stereo pair and if the volumes increase and the price drops I will buy another pair.
Thanks
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Old 14th September 2007, 06:17 PM   #13
Nordic is offline Nordic  South Africa
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So far we have potentaly accounted for 8 sets... If we can get another 7, pricebreak comes down to about $25 a set allready...

The amp will work well over a large range of supply voltages... just varying the zeners...

It can be built with or without capacitance multiplyer, produceing about half a farad per channel.... or these transistors can be omitted and bypassed with simple resistors, if that is your fancy...

Constructors will be given A4 size schematics, layout overviews, and voltage measurement points for faultfinding, So no advanced knowledge is required...

Total BOM cost exluding the 2 output transistors and their 2 decoupling elcos (2200uf -10000uf 50V 25mm or less diameter)...
was about 112 Rand...i.e. about $15... so not terribly expensive as far as these things go....

The last one I built, only used loosely matched (multimeter hfe) transistors, in the input pairs... with no matching anywhere else...
and still only has an offset of about 1mV.

So please add your name, noone is under any kind of obligation until we proceed to the second stage, where I have to fund this from my pocket...

Thank you for your time.
Nico

P.S. Thanks Ed I got your mail...or was it Bongo's
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Old 14th September 2007, 08:01 PM   #14
...truth seeker...
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Location: where the Appalachians rise from the Blue Grass
Quote:
P.S. Thanks Ed I got your mail...
Just let me know...

That was from the Ed in me. Mongo's fingers are like clubs. He gets no enjoyment with an iron in his hands. He has found out it will burn. The screams can be heard out in the garden, to say nothing of the tables and chairs to be replaced.
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Old 15th September 2007, 04:32 PM   #15
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Hi Nordic,
I am interested in every outstanding, low cost amp, specially if it is Destroyer's X amp
BUT, first I have to read +3500 replies that the thread now has! Or better, read DX amp description at Greg's website

(OK, my wife is already mad at me so a couple more boxes won't hurt )

Cheers,
M
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Old 15th September 2007, 05:02 PM   #16
RKH is offline RKH  United States
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Default nudge, nudge

Just to keep things going, if this all goes, i'll likely get 2 sets (4 boards).

Tell your friends, build an amp for your friends ... let's get to 30
__________________
Lighten up while you still can ...
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Old 15th September 2007, 05:20 PM   #17
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Hi Nordic

Count me in for 1 set.
Konkret, please contact me.
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Old 15th September 2007, 05:38 PM   #18
Nordic is offline Nordic  South Africa
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Hi Max, Like Greg I will put up a website shortly.
The circuit is a later version than the one on Greg's site...


Glad to see we are up to eleven guys (and girls) after so little time...

I have no hesitation in recommending this amp. It is extreme value for money... will run circles around any chipamp... and I mean equater sized ones... I have built one or two headphone amps in the past that came close to seperating singers from background singers like this... in fact just sitting infront of one speaker (plugging it in) I was amazed at how the sound seemed to beam infront of the box, placeing the instruments in clearly defined levels from back to front...

Then my wife, who had to climb over the mess for two weeks, while I took over the living room, started handing me CD after CD... all grumbles about the mess forgotten... and tonnes of praise.
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Old 15th September 2007, 05:50 PM   #19
Westley is offline Westley  United States
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Hi Nordic,

Please count me in for 2 sets (4 boards). Thanks,

Westley
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Old 15th September 2007, 07:33 PM   #20
konkret is offline konkret  Germany
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Default no e-mail

Hi meanman,

as a new member of diyaudio.com
I do not have access to other member e-mail addresses yet,
so I cannot contact you this way.
Since you should not have this problem,
please do not hesitate to contact me via my member e-mail address.

Cheers,

----------
konkret
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