This is a continuation from the “Heresy troubleshooting” I started in the 2 channel section.
Figured I move my Heresy posts here, as my project is turning more into a restoration than a trouble shoot.
the original started here:
Tested some new 2uF caps in the Type D schematic and that removed most of the strange noises. Swapped out the Quad 306 for another Quad 405-2 and that cured completely the issue.
Here is the rework with some quick and dirty connections.
Am currently looking at the differences between type D and E. Might completely refresh the first crossover to E type and compare.