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Old Today, 08:47 AM   #1
diyAudio Member
Join Date: Sep 2010
Default counterpoint sa4 otl

does anyone have circuit diagrams for the counterpoint sa4.
thank you.
I have problem on 1 amp,it trips speaker relay out.any know what may be causing this.
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Old Today, 09:40 AM   #2
Koonw is offline Koonw  Malaysia
diyAudio Member
Join Date: Apr 2013
Location: Miri, Sarawak, Malaysia
If the relay timer tripped maybe to look into what causes it to trip: too high DC offset, high distortion, abnormal bias and HT etc. You have to study the sch to find out.
Attached Images
File Type: jpg SA-4 Driver sch.jpg (198.1 KB, 49 views)
File Type: jpg SA-4 Output and PSU.jpg (157.7 KB, 48 views)
File Type: jpg SA-4 OTL brief.jpg (25.7 KB, 47 views)
File Type: jpg SA-4 OTL.jpg (84.4 KB, 48 views)
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Old Today, 09:43 AM   #3
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Join Date: Jan 2011
Location: In Transient
What is this crazy contraption? Do people actual use it still?!
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Old Today, 10:06 AM   #4
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Alastair E's Avatar
Join Date: Feb 2004
Location: South Wales
Originally Posted by jazbo8 View Post
What is this crazy contraption? Do people actual use it still?!

Bloody horrible IMHO! Recipe for a tube eater--Now we know where all the 6LF6's went!.....
Das Beste Oder Nichts

Last edited by Alastair E; Today at 10:12 AM.
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