A better quality schematic for the Epiphone Regent 20,50R is available from
https://gibson.jp/support/schematics-and-manuals
direct link -
http://images.gibson.com/Lifestyle/Support/Files/Schematics/Regent20,50R.jpg
The schematic is readable - IC1B 4558 is pin5 positive and pin 6 negative.
https://gibson.jp/support/schematics-and-manuals
direct link -
http://images.gibson.com/Lifestyle/Support/Files/Schematics/Regent20,50R.jpg
The schematic is readable - IC1B 4558 is pin5 positive and pin 6 negative.