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Bryston ST 4B repairs ans some quick tests. |
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DjLeco 
Young Croc 
Joined: 21 April 2009 Location: Bucharest Status: Offline Points: 811 |
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 Topic: Bryston ST 4B repairs ans some quick tests.Posted: 24 February 2023 at 3:14pm |
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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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I'm A Stupid SMART Romanian...
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DjLeco
Young Croc
Joined: 21 April 2009 Location: Bucharest Status: Offline Points: 811 |
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Posted: 26 February 2023 at 2:03am |
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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 |
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I'm A Stupid SMART Romanian...
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