|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| 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 |
27th February 2008, 04:30 PM
|
#1 |
|
diyAudio Member
Join Date: Jul 2005
Location: milan
|
Super Sanken Final Stage "Tauro"
Hi
my last project is an hybrid with 2SA1215 and 2SC2922 drived from a copule of comlementary hexfets IRFP240/9240 (after evaluation will be IRFD110 & C) the output is with big capacitors (20.000uF) just to leave DC (this balanced solution don't create emphasys on music) in this particular design i have put two bipolar devices instead single one (in AB bias) because need Class A sound without bridge there is an "auto-biasing" between a copule of complementary transistor in this configuration, so need just a resistor base to base |
|
|
27th February 2008, 07:33 PM
|
#2 |
|
diyAudio Member
Join Date: Jun 2004
Location: Warsaw
|
I don't understand the schematic, is that really working circuit?
|
|
|
|
28th February 2008, 04:26 AM
|
#3 | |
|
diyAudio Member
Join Date: Mar 2004
Location: Krakow
|
Re: Super Sanken Final Stage "Tauro"
Quote:
Hi, I can guess how it works  but could you send exact schematic?
__________________
regards, Pawel |
|
|
|
|
28th February 2008, 09:30 AM
|
#4 |
|
diyAudio Member
Join Date: Jul 2005
Location: milan
|
Tripolar PNPN configuration
I don't know if works
is a project until this WE this double bipolar ( renamed Tripolar ) is a PNP+NPN with common collector so is like a self-biasing device that works (may be) in phase as a variable resistor ( signal modulate value ) input satage with common source split phase in two opposite rail without feedback and mirror Regards |
|
|
|
28th February 2008, 10:41 AM
|
#5 |
|
diyAudio Member
Join Date: Jan 2006
Location: nea makri athens greece
|
i am interested too
more details please .....
looks so simple ....very symetric ...i like that how much power ????? how stable ????
__________________
SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr |
|
|
|
28th February 2008, 11:49 AM
|
#6 |
|
diyAudio Member
Join Date: Jun 2004
Location: Warsaw
|
So you are trying to foce transistors both the same collector current and base current. I don't think it is workable, you'd need identical beta...
|
|
|
|
28th February 2008, 01:17 PM
|
#8 |
|
diyAudio Member
Join Date: Oct 2003
Location: Near the sea
|
This looks like a power logic gate
 Bear in mind that every transistor has unique parameters, which are temperature dependent too. Some kind of feedback is requited to keep biasing stable on all stages.
__________________
I use to feel like the small child in The Emperor's New Clothes tale
|
|
|
|
28th February 2008, 01:17 PM
|
#9 |
|
diyAudio Member
Join Date: Jul 2005
Location: milan
|
suorce schematic
|
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Peavey "Super Festival" VTA-400 - upgrading to 400W? | pharaohamps | Tubes / Valves | 11 | 22nd March 2009 01:25 PM |
| "More stuff" final clearance sale. | Colescuttle | Swap Meet | 6 | 5th January 2007 03:29 PM |
| Some final pics of "Stacks" revisited and "Askew" with stand | Andy G | Multi-Way | 2 | 3rd February 2005 07:07 AM |
| Audio Crafters Guild "Super Symmetric Power Supply" | raincheck | Digital Source | 16 | 22nd April 2002 09:06 AM |
| DIY "Final Scratch" Turntable DSP | Ignite | Digital Source | 5 | 26th February 2002 12:52 AM |
| New To Site? | Need Help? |
| Page generated in 7.29320 seconds (2.18% PHP - 97.82% MySQL) with 11 queries |
