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+--- Thread: Tying together opamp outputs? (/showthread.php?tid=24539)
Tying together opamp outputs? - SynthWizard - 06-02-2021
Tying together opamp outputs?
It looks like the same design as this circuit https://www.researchgate.net/figure/Circuit-for-the-90-phase-shifter_fig4_228778023 which does not have the cross connectors. Given the design intent for the circuit it is hard to see how they would help.
https://electro-music.com/forum/viewtopic.php?p=449255#449255