AMZ SUper Buffer Layout

Started by powerplayj, February 14, 2007, 10:16:58 PM

Previous topic - Next topic

powerplayj

I'm I sleepy or is R7 missing from the layout?  Where should it go?

builds completed: boutique fuzz, rangemaster, BSIAB2, PT-80, Tonepad wah, Ross Comp, Axis Fuzz, MOSFET boost, Thunderchief, Big Muff (triangle), Mr. EQ, Dr. Boogey,  Neovibe, Dist+, EA Tremelo, ADA Flanger, RM Octavia
next build(s): ???

Papa_lazerous

ok here goes, R7 and R5 are only on the circuit to stop it popping when switching between effect and bypass.  They help drain the caps by giving them a route to ground but being 2M2 resistors you dont really loose any sound.  Ok thats what they are and what they do

Looking at the layout of components R7 is indeed missing.  Not a problem though,  Look at the bottom right of the circuit you have a pad (where C2 and C3 go) thats the output.  Well the missing R7 needs to go between there and ground.  And guess what ground is next door.  Just solder the resistor in place.  Or if yo are going to make your own pcb edit the layout to include it by putting a few pads in and drill 2 more holes when you are drilling it out.  simple

amz-fx

Quote from: powerplayj on February 14, 2007, 10:16:58 PM
I'm I sleepy or is R7 missing from the layout?  Where should it go?
Since this buffer was originally intended to be ON all the time, I did not include the output pulldown which was added later and I have not redrawn the layput.  If you use this as a driver and leave it on all the time just forget about R5 and R7...

regards, Jack