Bora is a nice guy from Serbia - Yugoslávia

destroyer X · 30th September 2005, 01:51 AM

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

destroyer X · 30th September 2005, 01:52 AM

The adress are there if you want to visit.

regards,

Carlos

destroyer X · 30th September 2005, 01:54 AM

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

destroyer X · 30th September 2005, 01:57 AM

You can see that is dated of September.

regards,

Carlos

destroyer X · 30th September 2005, 01:59 AM

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

mwmkravchenko · 30th September 2005, 02:07 AM

Thank you Carlos and Bora.

MArk

destroyer X · 30th September 2005, 02:19 AM

That we really apreciate....you Kravitchenko.

This thread started with luck!

regards,

Carlos

jaycee · 30th September 2005, 06:09 AM

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The catch is the BF469/470 is obsolete now.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.

destroyer X · 30th September 2005, 07:30 AM

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

pinco · 30th September 2005, 08:33 AM

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

30th September 2005, 02:07 AM	#6
mwmkravchenko diyAudio Member Join Date: Jan 2002 Location: Perth Canada	Nice to see some new designs! Thank you Carlos and Bora. MArk __________________ Mark

30th September 2005, 02:19 AM	#7
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	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 __________________ My Youtube channel; http://www.youtube.com/user/destroyersoueu?feature=mhee

30th September 2005, 07:30 AM	#9
destroyer X diyAudio Member Join Date: Feb 2004 Location: Recife - Brasil Northeast	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 __________________ My Youtube channel; http://www.youtube.com/user/destroyersoueu?feature=mhee

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30th September 2005, 06:09 AM	#8
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	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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