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Old 30th September 2005, 12:51 AM   #1
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Default Bora is a nice guy from Serbia - Yugoslávia

We have been talking for long time, and i asked him to let me post some schematics.

Those circuits i did not assemble, so, i cannot evaluate, as not hearing i have not this condition.

As Bora is experienced, i suppose he had constructed some prototypes.

Now, presenting Bora to forum friends.

regards,

Carlos
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Old 30th September 2005, 12:52 AM   #2
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Default Here is the home page of his site.

The adress are there if you want to visit.

regards,

Carlos
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Old 30th September 2005, 12:54 AM   #3
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Default I made my own choice related his schematics.

One is bridged, very good to use as subwoofer, as can produce a big voltage swing.

I will post in PDF because of quality.

regards,

Carlos
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File Type: pdf gemini.pdf (34.8 KB, 3083 views)
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Old 30th September 2005, 12:57 AM   #4
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Default This other amplifier, the Delta, is a new design

You can see that is dated of September.

regards,

Carlos
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Old 30th September 2005, 12:59 AM   #5
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Default This third one...the last one for a while, may be interesting to a lot of guys

Because there are many that loves simetrical amplifiers, in special this one that have simetrical input.

Bora will be tracking, to answer the questions that may appear.

regards,

Carlos
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File Type: pdf goliath.pdf (36.0 KB, 2455 views)
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Old 30th September 2005, 01:07 AM   #6
Mark Kravchenko --- www.kravchenko-audio.com
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Default Nice to see some new designs!

Thank you Carlos and Bora.

MArk
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Old 30th September 2005, 01:19 AM   #7
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Default Wonderfull is to receive your visit...good when the first one is someone

That we really apreciate....you Kravitchenko.

This thread started with luck!

regards,

Carlos
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Old 30th September 2005, 05:09 AM   #8
jaycee is offline jaycee  United Kingdom
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The Delta is rather... interesting!!

The catch is the BF469/470 is obsolete now. What would you suggest in replacement ? I've only ever found Japanese devices (notably by Toshiba and Sanyo) as close to these.
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Old 30th September 2005, 06:30 AM   #9
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Default Yes, they are obsolete now a days Jaycee, and will be a little

confused to find a good replacement, because the samples i have in my home, measured 150 of gain, showing me that it is a very low gain unit.... as this small value of gain may had be used to calculate the entire amplifier gain, a good replacement will need reduced gain too....well, Bora may have solution.

Bora place is advanced related New York time line.... around 4 hours i imagine, soon he will be here to suggest some replacement.

The first package of amplifiers Bora sent me, have 25 units....i believe that may have one or two more amplifiers that will interest you.

Amplifiers will be posted in groups of 3 units, a very good idea from Bora, this way, all comments will be around the last post 3 units.... a very few comments and questions will appear related older posted units.

Having curiosity Jaycee, try to visit his home page, where you will have more options.

regards,

Carlos
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Old 30th September 2005, 07:33 AM   #10
pinco is offline pinco  Croatia
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Hi,

I made his Studio amplifier and Omni protection board, Studio is excellent amplifier, very nice sound and superb stability, it is my first diy amplifier, and I am very pleased, Thanks Bora!!!,

Vinko
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