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Re: The Amazing Beavis Board
Posted: Wed May 25, 2011 9:32 pm
by warwick.hoy
Blarp:

Almost there,...just gotta get everything mounted up.
Before I figured out how to power the board and get a signal through the engaged bypass I made a quickee mouth-breathing iPod with unrehearsed BSing.
[youtube]http://www.youtube.com/watch?v=iEdSSMwlex4[/youtube]
I'm getting a signal to my amp with the breakout box engaged and disengaged,...Hooray for me!!!!

Re: The Amazing Beavis Board
Posted: Tue May 31, 2011 8:47 pm
by warwick.hoy
Amazing Beavis Board update.
This is just a dry fit.


Re: The Amazing Beavis Board
Posted: Wed Jun 01, 2011 10:41 am
by eatyourguitar
Re: The Amazing Beavis Board
Posted: Wed Jun 01, 2011 11:53 am
by modernage
Yeah man, that looks great.
Re: The Amazing Beavis Board
Posted: Mon Jun 20, 2011 1:28 am
by warwick.hoy

I think I actually dig on this clean boost --> single tranny bass fuzz. I'm going to perfboard it, harness it up and put it in an enclosure.
LPB-1 --> Christian Hemmo Bass Fuzz.
Re: The Amazing Beavis Board
Posted: Mon Jun 20, 2011 12:12 pm
by eatyourguitar
try a resistor between the output cap of the lpb and the input cap of the bass fuzz. anything from 1k up to 25k
Re: The Amazing Beavis Board
Posted: Mon Jun 20, 2011 12:28 pm
by warwick.hoy
Popped a 15k in there,....tamed the fuzz down quite a bit. Thanks,....I like the more aggressive fuzz,...but maybe I'll put in a toggle to pull the resistor out of the circuit (going to check that out with the switch on the B/O box).
Re: The Amazing Beavis Board
Posted: Mon Jun 20, 2011 3:37 pm
by eatyourguitar
yeah impedance is tricky. I tried a little experiment putting a 100k pot after all the pedals before the amp on a roland jc120. worked like a low pass filter but not muddy and no mid bump like a big cap. on some amps, the change is hardly noticeable. putting it between 2 pedals in one box is the perfect situation since you know that the same circuit will always be before and after so you can get the same results every time. recording engineers do this little trick called impedance mismatching where they select the mic pre with the wrong impedance to get the EQ without actually using an EQ. the most amazing thing about it is that there is absolutely no phasing. an EQ or filter will ALWAYS have phasing. phase linear EQ's would be the obvious exception to the rule.
Re: The Amazing Beavis Board
Posted: Tue Jun 21, 2011 6:55 am
by McSpunckle
Doesn't a real LPB circuit have a volume control? Why not just add that in for a gain control. : D
The output impedance of an LPB is going to be pretty high (value of the collector resistor-- 10K for an LPB, I think), so it won't be like feeding a buffer into a Bazz Fuss, but the low input impedance of a Bazz would also interact with the pickups and reduce high end. If the pedal's too harsh, you could add low pass filter after the LPB (just a cap to ground will do), or put a small cap from the LPBs collector to its base (like those little caps on big muff gain stages).
Re: The Amazing Beavis Board
Posted: Tue Jun 21, 2011 8:41 am
by warwick.hoy
You are going over mah head a little bit Danny,...but let me just chime in real quick and say that there is a pot for the volume control,...it's just hidden in the picture, but you can see a long black ground and a red and yellow jumper running out of frame to the terminal strip and an A100K pot,....like so;

The potty is tucked up above the breadboard there, and a gain/volume control is essentially what I'm using the LBP-1 for.
Re: The Amazing Beavis Board
Posted: Sun Jul 10, 2011 1:21 pm
by eatyourguitar


bypass switch and volume bypass switch. the volume is on the output. using the mammoth jumper wires. I intend to add a second breadboard to this beavis board at some point. organizing parts in drawers took me like 14 to 18 hours. what a nightmare. everything is held on by double-sided tape
Re: The Amazing Beavis Board
Posted: Sun Jul 10, 2011 2:55 pm
by Jero
I need a bigger organizer like that^
Re: The Amazing Beavis Board
Posted: Sun Jul 10, 2011 3:58 pm
by eatyourguitar
I got them at kmart, search for "60 stack on drawer". each store has 1 or 2 at a time. kmart.com wont ship them at all and you cant order stock to the store. what a bunch of jerks. good news is they are $15 each and they work great.
Re: The Amazing Beavis Board
Posted: Sun Jul 10, 2011 4:31 pm
by Rygot
Yeah I definitely need some bigger organizers.
May be checking out the mart of k today.
Re: The Amazing Beavis Board
Posted: Mon Jul 11, 2011 1:22 pm
by warwick.hoy
I need to go on a component shopping spree. I don't want a bunch of stuff I can't or won't use but I'm have tempted to just say fuck it go down the bags of 200 resistors list on Mammoth and check each one.