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Old 18th April 2013, 07:30 PM   #1121
alex mm is offline alex mm  Europe
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...... part marked in orange it's DB3 (diac) wich it's part of crowbar protection on output amplifier
Regards Alex.
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Old 18th April 2013, 10:37 PM   #1122
wiljj78 is offline wiljj78  Philippines
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Quote:
Originally Posted by mihailo View Post
DB3 Diac SeriesBreakover voltage
3: V typ = 32V

http://www.electronicecircuits.com/w...gger-diode.jpg
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Originally Posted by alex mm View Post
...... part marked in orange it's DB3 (diac) wich it's part of crowbar protection on output amplifier
Regards Alex.
Thank you guys....

Regards,
Wiljj78
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Old 19th April 2013, 02:15 AM   #1123
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Default Best Pre amp for SR-200

Dear Sir,
I would like to know the best pre amp design for this amp.
Please share a link of the pre amp.

Regards,
Samrat

Quote:
Originally Posted by apexaudio View Post
SR50 is Studio Ref Amp for small studio monitors without cascode in VAS.
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Old 20th April 2013, 06:42 PM   #1124
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Quote:
Originally Posted by AndrewT View Post
use the standard Power Guide.
Maximum output power ~ total device Pmax divided by 4 to 6.
For low voltage into a 4ohms speaker use 4 to 5.
5pr of 150W (a1943/c5200), gives Pmax = 1500W. Divide this by 5 to give 300W into 4ohms.

Using 5pr of 250W devices (mj21193/4) with good high voltage SOA, the Pmax = 2500W.
Giving 500W into 8ohms. A very different amplifier resulting from using a very different output device.

Why is forgotten such a Semelab`s MG6330/6331/6333 and compliment parts MG9410/9411/9413?
They are far better than MJ(L) On-Semis.
I can`t compare the incomparable - 2SA/2SC devices have a different nature, compared to the MJ(L). For example: they are already 10*times lower Ft.
But ON produces better devices than MJ(L)
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Old 14th May 2013, 02:34 PM   #1125
Junie is offline Junie  Philippines
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Let me share photos of my SR200 paired with Tibi's Input selector. You can find my preamp build from here: Yet another Volume controlers and source selections

Click the image to open in full size.
Click the image to open in full size.
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Old 14th May 2013, 02:54 PM   #1126
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Quote:
Originally Posted by Junie View Post
Let me share photos of my SR200 paired with Tibi's Input selector. You can find my preamp build from here: Yet another Volume controlers and source selections

Click the image to open in full size.
Click the image to open in full size.
Very nice, what about sound?
Regards
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Old 14th May 2013, 03:06 PM   #1127
Junie is offline Junie  Philippines
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Mile it's studio reference sound :-)
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Old 14th May 2013, 05:07 PM   #1128
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Quote:
Originally Posted by Junie View Post
Mile it's studio reference sound :-)
Yes, but you listen music at home
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Old 12th June 2013, 07:07 AM   #1129
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Default sr200 studio refer.

Hi mr apex i want to make a sr200 studio ref.
I have some MAT02 two pairs 2sa1295 and two pairs 2sc3264 .
I see to another post the version for sr200 with 2sa1216 and 2sc2922.
I want to have your opinion .
Thanks for all.
best regards.
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Old 12th June 2013, 09:04 AM   #1130
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Quote:
Originally Posted by thimios View Post
Hi mr apex i want to make a sr200 studio ref.
I have some MAT02 two pairs 2sa1295 and two pairs 2sc3264 .
I see to another post the version for sr200 with 2sa1216 and 2sc2922.
I want to have your opinion .
Thanks for all.
best regards.
MAT02 is NPN, you need PNP transistor for SR200.
Regards
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