Rack Ear Modules

eyehue · Post by **eyehue** » Wed Feb 18, 2009 4:33 am

Blacet 2210 Multi/Atten relocated to frac ear.

DGTom · Post by **DGTom** » Wed Feb 18, 2009 7:55 am

Nice!

eyehue; is your rack a PAiA? If so, is it assembled in a similar way to the Blacet Rack? I'm thinking my 2nd suitcase could be a double banger with DIY in the lid. The PAiA rack would fit perfect into the main part of the case!

eyehue · Post by **eyehue** » Thu Feb 19, 2009 12:55 am

Hi DGTom thanks!

Yea, the frac is a PAiA. I think the only differences are the Blacet one is more sturdy and does not have pre-drilled holes behind the ear panels (which PAiA uses for power supply LEDs and switch).

zerosum · Post by **zerosum** » Thu Feb 19, 2009 5:01 pm

great thread! (that I have nothing add to myself other than thanks for the cool posts)

doctorvague · Post by **doctorvague** » Sun Feb 22, 2009 9:13 am

There are a bunch of simple passive things that could be fit into frac rack ears. Mine are all 6 way multed, but if i had to do it over I'd trhow some other things in there.
For basic passive attenuators and such, Doepfer provides some good info here:
http://www.doepfer.de/DIY/a100_diy.htm

There are some more ideas in this thread including a super-simple passive VCF and a diode trigger combiner:
http://electro-music.com/forum/viewtopic.php?t=26643

Try the vactrol VCF, it's more useful than you might think. Parts count: 2!

Cheers
Phil

eyehue · Post by **eyehue** » Sat Apr 18, 2009 5:41 am

This one had been planned for a while, but i finally had the chance to mill it tonight, Ad Infinitum UMM402 Multi/Atten modified into a frac ear:

My last frac piece. Once everything is put back together my 6 frac rack modular is done. More pics to follow...

scozbor · Post by **scozbor** » Sat Apr 18, 2009 5:59 am

thats fuckin sick!

i'm not talking about the background...

eyehue · Post by **eyehue** » Sat Apr 18, 2009 6:11 am

Thanks! I just started learning the mill and I am enjoying it.

Oh, here's another, much less technical frac ear; it was hand-drilled on a used frac ear which already had the jack hole drilled by the previous owner.

CGS Psycho LFO Frac Ear:

Cat-A-Tonic · Post by **Cat-A-Tonic** » Sat Apr 18, 2009 6:57 am

Nice work. Are you still managing to fit the side panels behind the ears with these installed?

eyehue · Post by **eyehue** » Sat Apr 18, 2009 7:22 am

Hey thanks Cat-A-Tonic!

Yes, I've been keeping the side panels, however, I've been cutting notches into them with a band saw to keep everything free and clear. The Ad Infinitum required the largest notch and also some cutting into the wood frame to make it fit.

Cat-A-Tonic · Post by **Cat-A-Tonic** » Sat Apr 18, 2009 7:30 am

Thanks for the great pics Eyehue.

All the info that people have contributed to this thread is definitely going to be useful
when I finally get down to business on these modifications.

Does slicing into the side panels have a noticeable impact on the stability of the racks?
It seems like they would be quite a bit weaker after that, no?

I would have to shave my wooden rails down a bit too.

Cat-A-Tonic · Post by **Cat-A-Tonic** » Sat Sep 04, 2010 5:47 am

I recently assembled a Blacet 2790 into a Frac ear.

I still have to troubleshoot and fix the wiring on the additional 3rd channel attenuator,
but other than that it works as designed.

selfoscillate · Post by **selfoscillate** » Sat Sep 04, 2010 6:42 am

nice

Cat-A-Tonic · Post by **Cat-A-Tonic** » Sun Mar 29, 2020 2:40 am

Passive attenuator with 2 outputs
normalled to a 4 jack multiple.

Mounted in a Frac "ear."

There is one in each side of this rack.

MUFF WIGGLER

MUFF WIGGLER

Rack Ear Modules

Thread Exhumation & Update

Re: Rack Ear Modules