Correction / Improovement for my Scanner Vibrato /
Interpolating Scanner
I noticed there is a tiny, but not unimportant
design flaw - I'm surprised no one else mentioned it so far: The output
amplifier gain is too high. That means, the output will clip hard and nasty way
before the scanning transistors go into soft limiting action. Ok, there is a lot
of ugly/hard clipping gear out there, so probably that's the reason nobody
complained, but that's not the way I normally design my audio circuits. My
apologies. - Fortunately, this can easily be fixed, by just changing two
resistors. What has formerly been 13k, should now be 4k3. I won't redraw the
schematics diagram, but here is a correction of the PCB layout (applies to all
versions):
(scroll down to end of page)
JH.