"a thread dedicated to our great dr bora"

[keantoken]

Watch that 4n7 cap on the VAS, it is a rather interesting design choice... He uses this a lot in his amps, and I suspect there is a significance.

- keantoken

 

[zikinho]

Thanks zikinho,

You have got sharp eye, I have re-solder the 220pF capacitor. BTW, your amplifiers look nice.

Cheers, Stanley

Thanks, good work so far.

 

[Mamak]

Hi,
everybody this is sekhar from INDIA (WB). This thread is dedicated to our great "Dr Bora" also known as "boraomega" in the forum .This thread is specifically dedicated to the great amps built by "Dr Bora".
It is a salute to his great contribution to the diyers . It is welcome note to all the people who has already built his amps or willing to built his amp .it will be a common platform for all the fans of Dr Bora & his amps.
I personally have made two of his amps
1. LEGEND STAGE MKII
2. STUDIO SE
Both of the amps r a master piece in it self .
Every body who has built Dr Bora's amps r requested to post their reviews and pictures .
their r many amps in this this forum that r liked and built by many diyers .Dr bora's amps does nt seem to be one of them as they r nt brought in light to the diyers . I will try my best to provide all the details of the amps built by dr bora of course with his due permission.
for a start I will provide the list of amps by dr bora.
1. CALOR- gold(CLASS A 40W)
2. Standard (50-60W RMS/8 ohm)
3. Lambda (100W RMS/8 ohm)
4. Legend(125W/8 ohm)
a.LEGEND-Stage Master(250W RMS/8 ohm )
b.LEGEND-Stage Master MK2(500W RMS/8 ohm)
c.LEGEND-QUASOR(1000W RMS/4 ohm)
5.Modus (aka Techno)
6.DOGC-MK3
7.Studio
8.STUDIO SE(80E RMS/8 ohm)
9.Epsilon(100-120W RMS/8 ohm)
10.Sigma
11.SubZero
12.CroSer( 100W RMS/8 ohm)
13.T-Reference
14.Goliath
15.Universal
16.Blaster

ALL OF THEM R VERY GOOD AMPS NO BODY HAS PUT SO MUCH EFFORT FOR DIYERS . HATS OF TO U DR BORA .
WILL PROVIDE MORE DETAIL LATER .....
DR BORA'S WEBSITE :- bas.elitesecurity.org

REGARDS
SEKHAR

SOME OF DR BORA'S AMPS BUILT BY ME :-

sekhar..where i wnt get dr bora layout amp?i find his website.but nothing i can find.and i not understand.plz help me

 

[zikinho]

Dr.Bora's Modus M (ex Tehno) using only one pair of output transistors. 300VA, 4x10000uF powers suplly, adequate heatsink and 100mA bias. Only the faceplate is mising at this point.

 

[masood]

legend quosar ampl.pcb/circuit

 

[masood]

hi tinitus,
can you send me the above 400(l)and300(w)40 copper side pcb.that will be highly appreciating my email is khan.shahid251@gmail.com

 

[44250]

My unfinished studio-se,soon will be painted...and the sponge will go out,instead it there will come some Al-stripes.

 

[keantoken]

I just realized, there is a interesting resemblance to this schematic in post 38:

4QD-TEC: Low distortion Audio amplifier

http://www.diyaudio.com/forums/soli...-dedicated-our-great-dr-bora.html#post2276386

- keantoken

 

[nikko]

Hello everyone,This is only a small part of amplifier I have compiled,of this esteemed gentleman. Mr.Bore.

Legend.

Dogc

Docg two monoblock.

Dogc-H

Modus+Dogc-H

Studio+Clepsidra

 

[sekhar]

@nikko ............... i am very jealous of you........... U have such a great collection of your own diy amp........ great job man ..keep up the great work....


regards
sekhar

 

[sekhar]

@44250 nicely done..........
i also made the studio se version .....but never got the time to test it to the fullest .........


regards
sekhar

 

[44250]

I did,and nikko and d.veljko83 too and as all three of us can say-You will be pleasantly surprised with sound of this amplifier!

 

[naf]

Impressed sound of My Studio-Se

Today i've finished my one block of Studio-SE, it's sound very good.
i do really love the sound, i love sound of bass, i love sound of smooth treble, i love sound of mid. Honestly this Amp beat my GC3886 built with more expensive component. I'm wonder if i built this amp using component like my GC3886, and this amp very easy to built.
Thank you very much Dr. Jagodic for sharing this very good Amp.

 

[Arif Budiyanto]

Dear Naf, Congrats!

 

[naf]

Dear Naf, Congrats!

Thanks you Arif

 

[44250]

Where is boraomega´s post from yesterday?

 

[44250]

dogc-mk3

 

[sekhar]

@ 44250 just love the way u made the amp . And ur heatsinks are beautifull.....
nicely done ......

regards
sekhar

 

[44250]

Thank you! 🙂 tomorrow it will get it´s final 315VA toroid transformer of about 4-5kg of weight. It has not so much power as it weights but i beleive that means better transformer rather than worse. I will post a picture or two when i do it,it is really searious transformer...

 

[44250]

Thank you! 🙂 tomorrow it will get it´s final 315VA toroid transformer of about 4-5kg of weight. It has not so much power as it weights but i beleive that means better transformer rather than worse. I will post a picture or two when i do it,it is really searious transformer...

Tried but there is not enough space to do it. I have left a place for 400VA toroid with 13cm diameter but this one that i have is a 15 cm diameter so... There might be something else from Bora,who knows! 🙂