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Old 31st July 2008, 10:49 AM   #11
spirus is offline spirus  Greece
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Default schemos?

did u really get the schemos by e-mail?
from ampeg directly no cost at all?
would u like to share them with us?
thanks!
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Old 31st July 2008, 11:22 AM   #12
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I can send you the stuff I got if you want. For free, obviously,,,
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Old 31st July 2008, 01:25 PM   #13
spirus is offline spirus  Greece
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perfect!
so do u need my e-mail address?
or you will upload them somewhere and I will download them from there?
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Old 31st July 2008, 03:41 PM   #14
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would be better if you pm me your mail address,,, I won't spam I swear!
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Old 31st July 2008, 07:12 PM   #15
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Quote:
Originally posted by basstard
beautiful,,, do you have a schematic for your build mate?

I got the SLM ones but they're a bit too complicated for my being thick,,,

Sure, there is a schematic for that particular model I`ve built, just check for some schematic sites like schematicheaven, no problem .
I just built the preamp without the graphic equaliser (couldn`t figure out, how to cut the holes for vertical pots right to the font of my 2U rack ).
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Old 1st August 2008, 08:51 AM   #16
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Thx ragnar.

Thing is on schematic heaven you get the 1972 version which may not be like the newer one [I still have to compare the two schems].

I'm not interested in a vintage sound at all, I play what some have called "percussion bass" so I really need a modern, slightly overdriven sound like say chris beattie of hatebreed or dd verni of overkill,,, don't know if you've ever heard them,,,

guess I'll need to brace myself and dig deep into those schems I got,,, they look quite complicated,,,

spirus, when I come back from work later today I'll send you the schems I got,,,

needless to say, anybody else in need of those schems just tell me and I'll mail them,,,
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Old 2nd August 2008, 12:12 AM   #17
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I`ve made http://www.mif.pg.gda.pl/homepages/tom/files/svt3pro.zip model, again, without the grafic equaliser and power amp, just the preamp, and you can overdrive it also, i too like overdriven bass combined with octaver.
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Old 2nd August 2008, 01:40 PM   #18
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beatiful! thx ragnar, I got the exactly same schem,,, I also got the svt4pro schem [probably off of the same page, can't remember where I got it] I'll try and look for the differences between these two preamps,,,

I had the same prob with the graph eq on the Bogner XTC replica preamp, it doesn't have one but I wanted to throw one in,,, just had to ditch it for space issues [it's a 1 unit rack!] and I couldn't figure out how to cut the vertical holes for the sliders,,,

maybe one could cut a big square hole into the front panel then use plastic [easier to cut] or whatever for the graph eq panel and bolt it to the front into the square hole,,, I don't know if I made myself clear, I'm **** at explaining things in english,,,

spirus, I just sent you the schems,,, anyway, they're the same you can find on the link ragnar posted,,,
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Old 2nd August 2008, 03:05 PM   #19
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Ragnar,

Do you mean that you build the preamp; including valves, rather complex power supply and mid frequency inductor? Can you give some more details? I'd like to see the PC board for this preamp.

Mark
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Old 2nd August 2008, 05:56 PM   #20
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to Basstard: Yes, I understood right, but I won`t build that preamp to it anyway now because over the pots I placed manual switches for ultra Lo/Hi mode etc.

to Markus2006: well yes, no problem, I attached some links below, of course instead of (i guess) 5 possition midrange switch I justmade every even position, so I have 3 instead of 5, just the coil was a bit hard to make, because I had to wind it manualy .
I`ll see that few components like tube sockets are still missing, that`s because I made these photos in the middle of the work .

http://thorssonamps.tym.sk/amps/mjolldjur/preamp.jpg
http://thorssonamps.tym.sk/amps/mjol...bottom-PCB.jpg
http://thorssonamps.tym.sk/amps/mjolldjur/guts.jpg

have mercy, don`t blame me for that finish .
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