Icegoldnixon
Well-known member
- Joined
- Feb 3, 2015
- Messages
- 79
Hello everyone! ;D
I'm an amateur who has enjoyed looking at everyone's projects here. I've decided to try one of my own.
A few years ago I pulled some tamura transformers out of a Teac 3a mixer, and have decided to use them in a Jensen as017 mic preamp circuit. Their ratio is 1:5 or so, so I figured they'd be suitable. Anyway, this is my first time laying out a PCB this complicated, so I've attached a screenshot of the KiCad file. The schematic is the as017 circuit exactly, with (possibly unnecessary) decoupling caps added.
What I'm wondering is: do I need to update the zobel network for this substituted transformer? (Looking at the Teac schematic, it's not obvious what different values I would use.) Also, any general comments on my probably bad pcb layout is much appreciated. Thanks!
I'm an amateur who has enjoyed looking at everyone's projects here. I've decided to try one of my own.
A few years ago I pulled some tamura transformers out of a Teac 3a mixer, and have decided to use them in a Jensen as017 mic preamp circuit. Their ratio is 1:5 or so, so I figured they'd be suitable. Anyway, this is my first time laying out a PCB this complicated, so I've attached a screenshot of the KiCad file. The schematic is the as017 circuit exactly, with (possibly unnecessary) decoupling caps added.
What I'm wondering is: do I need to update the zobel network for this substituted transformer? (Looking at the Teac schematic, it's not obvious what different values I would use.) Also, any general comments on my probably bad pcb layout is much appreciated. Thanks!