Bryston 4B SST clone - Page 62

hschier · 30th November 2020, 02:21 PM

My bryston 4b sst clone!!
Y have to finish matching transistor y debugging process.
And a chassis to house everything.

Fetamp · 03:03 PM

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,

hschier · 30th November 2020, 03:14 PM

i replaced pn100/pn200 for bc550/bc560, that's why they are installed backwards.

i will share my progress. thanks!!

amplidude · 30th November 2020, 06:07 PM

Congratulations on your build, but from the photos it looks like your soldering could use a little more heat,

amplidude · 30th November 2020, 06:13 PM

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

hschier · 08:27 PM

thanks Thomas!!! only expert ayes. Thanks

I reflowed all of them. here is the pic from back.

amplidude · 30th November 2020, 09:03 PM

Oh I'm by no means an expert, but I do appreciate a well done solder

Fetamp · 5th December 2020, 07:30 AM

Again with new version of input module

Alexsandr1961 · 7th December 2020, 06:11 PM

Put Q5 Q6 2SA1380-2SC3502. The result is good. Components according to the original scheme.

hschier · 7th December 2020, 08:06 PM

do you have the original input diagram?

30th November 2020, 03:00 PM	#612
Fetamp diyAudio Member 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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30th November 2020, 03:14 PM	#613
hschier diyAudio Member Join Date: May 2020	i replaced pn100/pn200 for bc550/bc560, that's why they are installed backwards. i will share my progress. thanks!!

30th November 2020, 06:07 PM	#614
amplidude diyAudio Member Join Date: Feb 2016	Congratulations on your build, but from the photos it looks like your soldering could use a little more heat,

30th November 2020, 09:03 PM	#617
amplidude diyAudio Member Join Date: Feb 2016	Oh I'm by no means an expert, but I do appreciate a well done solder

7th December 2020, 06:11 PM	#619
Alexsandr1961 diyAudio Member Join Date: Apr 2020	Put Q5 Q6 2SA1380-2SC3502. The result is good. Components according to the original scheme.

7th December 2020, 08:06 PM	#620
hschier diyAudio Member Join Date: May 2020	do you have the original input diagram?