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Bryston 4B SST clone
Bryston 4B SST clone
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Old 30th November 2020, 02:21 PM   #611
hschier is offline hschier  Chile
diyAudio Member
 
Join Date: May 2020
My bryston 4b sst clone!!
Y have to finish matching transistor y debugging process.
And a chassis to house everything.
Attached Images
File Type: jpg amp pcb.jpg (454.8 KB, 253 views)
File Type: jpg amp2 pcb.jpg (244.6 KB, 252 views)
File Type: jpg amp3 pcb.jpg (268.2 KB, 242 views)
File Type: jpg amp1 pcb.jpg (261.7 KB, 232 views)
File Type: jpg input pcb.jpg (378.9 KB, 194 views)
File Type: jpg input2 pcb.jpg (223.4 KB, 70 views)
File Type: jpg psu pcb.jpg (416.9 KB, 66 views)
File Type: jpg psu2 pcb.jpg (221.9 KB, 67 views)
File Type: jpg matching transistor.jpg (195.9 KB, 81 views)
File Type: jpg amp4 pcb.jpg (191.2 KB, 77 views)
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Old 30th November 2020, 03:00 PM   #612
Fetamp is offline Fetamp
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Join Date: Aug 2017
Location: Sri Lanka
Congratulations hschier ,nice job...please share your experience with us ,please let me know about Q5,6 in input module are they hot to Tuch? Please post some pictures of AMP cabinet,

Last edited by Fetamp; 30th November 2020 at 03:03 PM.
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Old 30th November 2020, 03:14 PM   #613
hschier is offline hschier  Chile
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Join Date: May 2020
i replaced pn100/pn200 for bc550/bc560, that's why they are installed backwards.

i will share my progress. thanks!!
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Old 30th November 2020, 06:07 PM   #614
amplidude is online now amplidude  Denmark
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Congratulations on your build, but from the photos it looks like your soldering could use a little more heat,
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Old 30th November 2020, 06:13 PM   #615
amplidude is online now amplidude  Denmark
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Join Date: Feb 2016
Those emitters carry a good amount of current, I would reflow the boards again, it's not criticism, just to help make it work many years.
Thomas
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File Type: jpg 20201130_191036.jpg (60.9 KB, 89 views)
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Old 30th November 2020, 08:09 PM   #616
hschier is offline hschier  Chile
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Join Date: May 2020
thanks Thomas!!! only expert ayes. Thanks

I reflowed all of them. here is the pic from back.
Attached Images
File Type: jpg back amp pcb.jpg (724.1 KB, 95 views)

Last edited by hschier; 30th November 2020 at 08:27 PM.
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Old 30th November 2020, 09:03 PM   #617
amplidude is online now amplidude  Denmark
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Oh I'm by no means an expert, but I do appreciate a well done solder
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Old 5th December 2020, 07:30 AM   #618
Fetamp is offline Fetamp
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Join Date: Aug 2017
Location: Sri Lanka
Again with new version of input module
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File Type: jpeg D7CD989A-FBB9-420A-9C0F-F14472ED7E6A.jpeg (636.1 KB, 91 views)
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Old 7th December 2020, 06:11 PM   #619
Alexsandr1961 is offline Alexsandr1961  Russian Federation
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Join Date: Apr 2020
Put Q5 Q6 2SA1380-2SC3502. The result is good. Components according to the original scheme.
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Old 7th December 2020, 08:06 PM   #620
hschier is offline hschier  Chile
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Join Date: May 2020
do you have the original input diagram?
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