|Solid State Talk all about solid state amplification.|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
||Thread Tools||Search this Thread|
|30th April 2011, 09:22 AM||#14|
Join Date: Nov 2009
Good schematic, but there s a few misdesigns...
The worse is the use of a MJE340/350 pair as common emitters
part in the cascoded VAS..
It make sense as common base part for the cascodes, although
there s far better devices that suit this purpose.
Also, they use a heavy shunt compensation resulting in a low
slew rate of 40V/uS wich is not really enough for such high
They use 120V 2SA970/2SC2240 as common base part in the
input differential, and althoug it s enough since they see only 72V
EC voltage in normal functionning, they can t sustain the 144V
rail voltage, wich is not cautious since at power on, there can
be quite different conditions than when voltage have settled...
Other than that, construction is serious...
|30th April 2011, 11:34 AM||#15|
Join Date: Jul 2003
This is a PA amp. OK for disco. Built like tank.
Having said that, my amp is rated at 280W per channel and does around 500W into 4 Ohms and it weighs 38Kg . . .
Amplifier Design and Construction for MUSIC! http://hifisonix.com/
Last edited by Bonsai; 30th April 2011 at 11:36 AM.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|I have found a special amplifier, am trying to contact the designer||destroyer X||Solid State||224||11th June 2012 03:31 PM|
|Trying to contact X - PRO||homertooties||Forum Problems||0||20th January 2009 11:06 AM|
|trying to contact col||Vinnie2||Forum Problems||0||23rd December 2008 12:31 PM|
|New To Site?||Need Help?|