|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|
|5th January 2004, 10:05 AM||#1|
Join Date: Aug 2003
Greening a Classic 2.
About 16 mohths ago I did B7 AMPLIFIER (B7_AMP.zip). Output devices
in class AB at 50ma each.
Now I am planing to do somthing like B7_MOS_AMP.zip. Output devices
at 500 ma each.
|7th October 2006, 03:44 AM||#3|
Join Date: Dec 2005
Location: the north
Boris MOSFET 2SK1058 2SJ201 Class A
I find your amplifier, new MOSFET Class A is a rather good one.
At least what I can see from your paper.
Bias is in Class A, 500mA/device = Total 1 ampere.
Will give teoretically close to 16 watt RMS ( +12dB SPL ) in true Class A output.
B7_MOS is not too complicated and still not too simplified to give problems.
Correctional small trim caps filters has been added to improve overall performance.
I would like to increase the current ( 6-7 mA ) in VAS stage considerably.
From this follows,
that for input stage I would increase to at least 2.5 mA or more per transistor
to better handle the control av VAS stage.
Your choice of transistors in input, 2SC2240
and for output, 2SK1058 / 2SJ201 are completely in my liking.
About the other transistors I do not know much,
but I am sure they will do the job.
Not every time at this board, we see people submit
such basically good amplifiers.
Hurray! For Russian DIYaudio.
I attach an unzipped schematic of your amplifier, Boris_7
Regards to Moscow
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Greening a Classic?||aborza||Solid State||58||4th July 2009 06:14 PM|
|Problem with Classic 8.0b||Ree||Solid State||1||8th August 2008 11:37 AM|
|Classic 16.0||Lowrider||Tubes / Valves||38||6th August 2008 08:15 AM|
|need some classic tl advice||galac||Multi-Way||8||23rd November 2007 09:52 PM|
|Classic BR Alignments||BAM||Multi-Way||0||20th November 2005 04:31 PM|
|New To Site?||Need Help?|