Newbie level 6
I recently acquired a vintage spring reverb tank (gibbs 4FB2A1C), so I began to look around for a circuit to drive it and found this: . It uses a pretty specialized tube, a PCL86 which is a pentode and triode in one tube. Since I already had a couple 6AU6s and 12AX7s lying around I figured it might be worth adapting the circuit to use those tubes. Unfortunately I'm pretty new to working with tubes and don't really know how to go about this, I'm fairly sure I just need to adjust the bias, but not sure exactly how. Could someone give me some guidance on this?