Hi to all,
I just built my PorkBarrel 2109 Chorus. It works well but I noticed a slight decrease output volume when engaged.
Here's the schematic:
(https://i.ibb.co/2Fsz2sy/Schermata-2019-06-10-alle-13-36-07.png) (https://ibb.co/YNy59y3)
Any ideas? decrease R9, increase R11 or what?
Thanks
Assuming the wet/dry balance is OK, then increasing R11 will increase the gain of that last opamp.
Done the r11 mod... now seems that the situation is better. I used a trimpot so I can adjust precisely the gain.
I also socketed r9 so in case I can adjust this too (is it a good or a bad idea?)...
I can't see a whole lot of point socketing R9 when R11 is a trimmer. I've not had any sockets fail on me yet but it seems like this is a potentially unnecessary point of weakness.
Happy to be corrected as always :)
Changing R9 will affect the wet/dry balance. You already have a "Blend" pot for that.
Quote from: patrick398 on June 12, 2019, 07:26:25 AM
I can't see a whole lot of point socketing R9 when R11 is a trimmer. I've not had any sockets fail on me yet but it seems like this is a potentially unnecessary point of weakness.
Happy to be corrected as always :)
Make some tries and the r11 is enough for the gain problem. ;)
Quote from: bluebunny on June 12, 2019, 09:32:46 AM
Changing R9 will affect the wet/dry balance. You already have a "Blend" pot for that.
Thanks so