This is basically a higher gain version of BJFE Blueberry Bass OD since it has an added pre amp stage (Q1). Note that originals had the now obsolete BF244A transistors with DGS pinouts. I changed the pinouts for more accesible transistors. 2N5457s should bias up fine and sound good.
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ReplyDeleteI can still buy BF244As, unlike the 2N5457s,
ReplyDeleteso, I'd like to modify this layout for DGS pinout, if you were so kind as to share the DIYLC file...
of course, if you could make that version, it would only be better... :)
But anyway, the reason why I'm asking is because I really like this layout, 19 cols wide !!! so cool...
much better than the "original" BBOD with red LEDs and without the preamplification stage, being 22 cols in width :)
I mean, this should be "it" :)
but I'd love to build the BF244A version...
this is day 2 for be browsing this site...
congrats!
I'll try to tweak the layout for DGS pinouts but it will take few days until I'm back home.
DeleteNo sound. Looks to be missing 47pf cap from 1M resistor to Q1 drain?
ReplyDeleteComparing to this:
http://tagboardeffects.blogspot.com/2012/06/mad-professor-blueberry.html
Hi there.
DeleteYes I missed the 47pF cap. It is now added. I also spotted another small mistake. The 14,7k resistor at the top left corner had it top leg in the wrong spot. It needs to be moved down one row (it is now a 3 row resitor...). The layout is updated reflecting both of these changes.