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Guts shot?

Sounds cool! I like the treble suck.

I want this!

I tested it today, it makes noise of all different flavors but it takes some time to really get to know how to use it. the 500k low pass and 500k distortion circuits do most of the work in the last %10 of a clockwise turn. but on some sources, it worked for the full rotation of the knob. the distortion will be less noticeable on a louder signal. overall I would say that it is so unpredictable, the knobs should be labeled "do something cool 1" and "do something cool 2". I found that some high gain pedals like ultra metal shred buthole distortion will pick up a signal through the ground or some magical force field (seriously its EMI). so unlike my normal feedback looper, this one has a always make noise, always feedback at least a little bit, kinda thing. but I believe the problem goes away if you have less gain in the loop. I feel like it opens up new possibilities for noise but its the kinda pedal that is so strange, you would think it was broken. its either failure or hipster.

Dual 5840 submini pentode based overdrive with optional diode clipping, bypassable 2 knob Vox style tonestack and clean blend using the Bblender circuit. Optimised for 5 string active bass - I've been throwing out Muse bass riffs all morning. Customer designed graphic - not my usual look. Also, first time I've used those stick padded plastic PCB standoffs - like em! The more observant amongst us will notice no status LED is currently fitted - just waiting for a shipment of LEDs to arrive.

are you doing any preamp pedals with the 6112? like the effectrode firebottle for example? I've been gasing for one. a soldano pre or a trainwreck pre in a pedal w 6112 would rock my sox dude seriously.

eatyourguitar wrote:are you doing any preamp pedals with the 6112? like the effectrode firebottle for example? I've been gasing for one. a soldano pre or a trainwreck pre in a pedal w 6112 would rock my sox dude seriously.

If you want one, I'll do one. I use 6112 at 190 volts as the preamp in my Superfly amp it would be a simple job to just build the preamp (tweaked to soldano or trainwreck spec) and the HV power supply into a pedal to be powered by a 9v power pack.

What's a trainwreck? I keep seeing that mentioned all over.

mathias wrote:What's a trainwreck? I keep seeing that mentioned all over.

Mega-vox

Ken Fisher's trainwreck express. el34 early marshall style amp from the 70's built in the USA. Ken died a few years back. his amps were wood, no grill or tolex. each one was named after a woman with no name used twice. they also woodburned a little animal on the inside like a turtle or dog or whatever. its also a good way to keep counterfeits from popping up. the express is known to be harmonically very rich and complex. the one lasting impression Ken left on the world of amp design is the shit ton of little caps used instead of one big cap. thats why its so dynamic and dirty at the same time. one more thing, no master vol. you just have to crank it to sound good.

RIP Ken Fisher

eatyourguitar wrote:Ken Fisher's trainwreck express. el34 early marshall style amp from the 70's built in the USA. Ken died a few years back. his amps were wood, no grill or tolex. each one was named after a woman with no name used twice. they also woodburned a little animal on the inside like a turtle or dog or whatever. its also a good way to keep counterfeits from popping up. the express is known to be harmonically very rich and complex. the one lasting impression Ken left on the world of amp design is the shit ton of little caps used instead of one big cap. thats why its so dynamic and dirty at the same time. one more thing, no master vol. you just have to crank it to sound good.

RIP Ken Fisher

Thanks, finally clears up a lot of stuff I've seen referred to online. Found some pictures of beautiful woodwork on the amps on google. Awesome stuff.

These are about halfway finished:



I did a lot of measuring, math, and writing things down when I drilled these. I also drilled them out on a big mill with a digital readout, so that I can reproduce the same enclosure drilling accurate within a thousandth of an inch. (It's not a CNC mill, it's the kind you crank by hand, but I referenced measurements from a zero/edge on the centerline of the side. I need to find bits for the 16mm pot, LED, and DC jack and drill those next. Then it's final wiring the boards in and painting the enclosures somehow. I also need to source some washers for the amp-style jacks, since they don't "clamp" to the sides of the enclosure; it isn't thick enough.

These are gonna be SHO's, by the way.

you might want to use enclosed switchcraft jacks and the smaller DC power plug that I think culturejam posted somewhere. when space is this tight, every bit counts. more room means you might fit a more complicated circuit. the next step would be to put power on a flying lead.

eatyourguitar wrote:you might want to use enclosed switchcraft jacks and the smaller DC power plug that I think culturejam posted somewhere. when space is this tight, every bit counts. more room means you might fit a more complicated circuit. the next step would be to put power on a flying lead.

There's enough room. The circuit board is 5x7 pad perfboard, and can be seen here:

Board is roughly half the size of a postage stamp. This was just a mock-up of trying to mount everything horizontally in the case. As you can see by pics above, I went with the standard layout, inspired by Malekko. (But I actually forgot to measure the Malekko trem before I sent it out, so I had to measure all this based on my own parts.)

I may have to get those smaller DC jacks that culturejam found, though, just because I don't like the plastic offset stupid jacks, even though I got the ones that bolt on from the outside (saving room inside)

Trollhammer and Gristleizer got a brother OPEN. Nice stuff dudes!