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Old 18th July 2005, 01:16 AM   #21
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Default Crescendo

This is the circuit of the "baby" mini Crescendo rated around 50W. I have built both and IMHO the higher power power version sounds much better. The mini Crescendo sounds quite warm but mid range is slightly compressed and vocals do not sound very open. Maybe you can muck around with the feedback cap to tweak the sound a bit. Had some oscillation probelms with one channel and the problem sorted out using regular 5 pcs paralleled 1ohm 1W carbon resistors for the output stage instead of a 0.22ohm wirewound. Also used MJE340 and 350 instead of the BF469 and 470. Also sounded better, I think! Once up and running ran more than 10 yrs without any problem.

My 2 cts
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Old 18th July 2005, 08:59 AM   #22
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I men this :
"1Kw" Crescendo with 4 x2SJ50 and 4 x2SK135

have you the artical about that?
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Old 18th July 2005, 10:48 AM   #23
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you mean "Gigant" ?
I have xerox of it,but if someone is interested ,I must scan it first
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Old 18th July 2005, 10:54 AM   #24
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I ist were intresting, how old are that crecendo mosfet 250w??
I have built half of that but i have lost the document about that, can you help me??
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Old 18th July 2005, 11:19 AM   #25
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Quote:
you mean "Gigant" ?
if you really mean you have it, I'm also interested

regards,

hienrich

hienrichb@yahoo.com
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Old 18th July 2005, 11:38 AM   #26
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If you have it can you mail me the documents to :
danne_linkinpark@msn.com

I have been looking for this mayby 5 month!!
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Old 18th July 2005, 03:25 PM   #27
Zen Mod is offline Zen Mod  Serbia
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OK -I'll try to scan it tonight and upload it somewhere for all interested;

check here for further info
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Old 18th July 2005, 03:52 PM   #28
Bensen is offline Bensen  Belgium
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I don't really know if this is the Gigant, but this is a Crescendo with 4 output devices, the original Elektor design uses differnent transistors.
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Old 18th July 2005, 03:53 PM   #29
Bensen is offline Bensen  Belgium
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The other side.

Greetz
Ben
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Old 19th July 2005, 12:50 AM   #30
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http://choky.on.neobee.net/downloads/gigant.zip

it will be there at least 5 days
cheers

ps. if someone need pics of PCBs , just buzz........
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