FS-Borbely Class A mosfet

nicoch58 · 28th September 2009, 10:03 AM

I love this amp ,build 6 month ago ,but as now I'm tube man...

the powerstage in the pic is the EB-1199/114 is config for 25W in class A (50w if you add a two pair mosfet Reneas)with 32Vac ,my is config for 16w in A and to 50 inA/B with my r-core 40Vac ,the bias start from 600ma to up 1,2A can be set with trimmer
http://www.borbelyaudio.com/pics/Web343ribbon.pdf

I have two separate psu

-Pw-psu 500VA R-core dual sec. dual mono double diode(farchild stealth ) 40.000µF nichicom Gold tune 63V (total 4discrete bridge 80.000µF)

-driver-psu 50VA toroid dual mono double diode(farchild stealth ) 2.000µF nichicom pass true gold 100V (total 4discrete bridge 4.000µ)
plus two dualmono Salas Shunt reg+ 4 1000µ pass true on out

the psu can be semplifair ,ie only the r-core with out the shunt ,for size problem

for price and shipping cost drop an Email not PM ,we need a speak a bit

nicoch58 · 10:13 AM

during assembly one channel,heatsinK are big 30x25x4 cm (40€ each )

nicoch58 · 28th September 2009, 10:11 AM

driver detail ,see the dual toshiba Jfet....

Ps you only need a box, in/out connector

slr 5000 · 28th September 2009, 10:13 AM

pm sent
ive also sent my email address

regards sheafer

nicoch58 · 28th September 2009, 10:17 AM

with Sals shunt at work

kannan_s · 28th September 2009, 11:05 AM

MY email id is kannan_srinivasa@yahoo.com - can you send me the price and other details
I am interested
kannan

nicoch58 · 28th September 2009, 01:02 PM

Ps My trafo are only 220ac , for USA you need a new one , at last lower the shipping cost

nicoch58 · 28th September 2009, 07:37 PM

still on sales

nicoch58 · 09:48 AM

Now PM is disable as people dont read what I write

Drop an Email ,I can send a pic of shipping cost and speak better....

the amp is quite heavy 15 to 20kg shipping range.......

28th September 2009, 10:03 AM	#1
nicoch58 diyAudio Member Join Date: Oct 2004	FS-Borbely Class A mosfet I love this amp ,build 6 month ago ,but as now I'm tube man... the powerstage in the pic is the EB-1199/114 is config for 25W in class A (50w if you add a two pair mosfet Reneas)with 32Vac ,my is config for 16w in A and to 50 inA/B with my r-core 40Vac ,the bias start from 600ma to up 1,2A can be set with trimmer http://www.borbelyaudio.com/pics/Web343ribbon.pdf I have two separate psu -Pw-psu 500VA R-core dual sec. dual mono double diode(farchild stealth ) 40.000µF nichicom Gold tune 63V (total 4discrete bridge 80.000µF) -driver-psu 50VA toroid dual mono double diode(farchild stealth ) 2.000µF nichicom pass true gold 100V (total 4discrete bridge 4.000µ) plus two dualmono Salas Shunt reg+ 4 1000µ pass true on out the psu can be semplifair ,ie only the r-core with out the shunt ,for size problem for price and shipping cost drop an Email not PM ,we need a speak a bit

29th September 2009, 09:45 AM	#9
nicoch58 diyAudio Member Join Date: Oct 2004	PM Now PM is disable as people dont read what I write Drop an Email ,I can send a pic of shipping cost and speak better.... the amp is quite heavy 15 to 20kg shipping range....... Last edited by nicoch58; 29th September 2009 at 09:48 AM.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Borbely low-voltage hybrid Tube-MOSFET opamp as a line amp...	jazzpeter65	Solid State	27	26th March 2012 11:50 PM
mosfet class a/ab amp	p robertson	Solid State	30	9th February 2010 11:07 AM
Anyone have a schematic for the old Borbely 60W MOSFET Amp	jwv3	Solid State	5	26th April 2009 02:21 PM
Borbely DC-50 Class-A 20watts	PassFan	Solid State	5	6th January 2002 11:59 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

28th September 2009, 10:13 AM	#4
slr 5000 diyAudio Member Join Date: Oct 2007 Location: melbourne	pm sent ive also sent my email address regards sheafer

28th September 2009, 11:05 AM	#6
kannan_s diyAudio Member Join Date: Jun 2009	MY email id is kannan_srinivasa@yahoo.com - can you send me the price and other details I am interested kannan

28th September 2009, 01:02 PM	#7
nicoch58 diyAudio Member Join Date: Oct 2004	Ps My trafo are only 220ac , for USA you need a new one , at last lower the shipping cost

28th September 2009, 07:37 PM	#8
nicoch58 diyAudio Member Join Date: Oct 2004	still on sales