goldear
Certifiable Audio Junkie
Sorry to revive such an old thread, but I'm only now finally getting to this project.
I am guessing that I have an HF-89A, because I see a 25pF cap which looks like it is acting as local feedback on the driver stage which appears nowhere on the schematic.
This cap is a ceramic, and I was thinking of replacing it with a 20pF styrene (that's the closest value that I could find in my parts stash), because I dislike the sound of ceramics.
Does anyone have an HF-89A schematic? I only have the original 89 Schematic.
I am guessing that I have an HF-89A, because I see a 25pF cap which looks like it is acting as local feedback on the driver stage which appears nowhere on the schematic.
This cap is a ceramic, and I was thinking of replacing it with a 20pF styrene (that's the closest value that I could find in my parts stash), because I dislike the sound of ceramics.
Does anyone have an HF-89A schematic? I only have the original 89 Schematic.