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Bryston ST 4B repairs ans some quick tests.

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DjLeco View Drop Down
Young Croc
Young Croc


Joined: 21 April 2009
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    Posted: 24 February 2023 at 3:14pm
Hi there, longtime no seen, huh?

As Phil Collins named his interpretation (I'm) "Not dead yet", in the last period less activity, but from time to time, some nice stuff.

Both channels faulty, switches of balanced-unbalanced and mono bridge-individual, faulty, poor contacts, corrosion, so strapped directly to individual (stereo) and ballanced inputs

All output devices and predrivers replaced, adjusted bias and symmetry and some tests.










Edited by DjLeco - 24 February 2023 at 6:08pm
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DjLeco View Drop Down
Young Croc
Young Croc


Joined: 21 April 2009
Location: Bucharest
Status: Offline
Points: 817
Post Options Post Options   Thanks (0) Thanks(0)   Quote DjLeco Quote  Post ReplyReply Direct Link To This Post Posted: 26 February 2023 at 2:03am
Some audition, on Heco Superior 930 speakers.




https://www.youtube.com/watch?v=YMhfcnpLBbY



Output devices, the right one is original OEM SJ6522A, wich sillicon plate is the same as MJ15003, 20A Ic and 140 Volts CE, the left one is MJ15024, 16A Ic and 250Vce.

https://i.postimg.cc/pdkDJMNH/20230225-140302.jpg


Edited by DjLeco - 26 February 2023 at 12:21pm
I'm A Stupid SMART Romanian...
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