Maestro PS-1A layout...for your pleasure

[soggybag]

Do you need marched JFets for this?

[orangetones]

Decided to just use a TL071 for the buffer.  Could someone please have a look a this layout and see if I have messed anything up before I etch this board?  I removed the original buffer and put the TL071 buffer in there.  There is also a TMR1222 Traco power supply that I have put on the board.  If someone wants to have a look at that too (though it is pretty simple), I would appreciate it.

Buffer design comes from this post:
https://www.diystompboxes.com/smfforum/index.php?topic=102281.msg985795#msg985795

Power supply from this post:
https://www.diystompboxes.com/smfforum/index.php?topic=58663.msg1222071#msg1222071

Could someone just have a look?  It is always good to get a second set of eyes on something.




Also, in relation to the output, there was talk of modifying the output resistor, would it be necessary in this case?  If so, what would I change that to?

[Yazoo]

You do need a matched set of fets. If you have a look at the schematic, it indicates Q1 to Q6 have to be matched.