This is what the MuRF was based on.

Plug in here for info tips and strategies for your Moogerfooger Analog Effects. Connect more than one for plenty of fun!
Post Reply
sir_dss
Posts: 513
Joined: Mon Jul 21, 2003 8:00 pm
Location: CAL LE FOR NE YA

This is what the MuRF was based on.

Post by sir_dss » Sat Dec 24, 2005 5:03 am

I've been looking for this for some time now.

The Murf was based on a design from the Formula Sound Multiple Resonance
Filter Array:

http://home.att.net/~elhardt/Formula_So ... Filter.jpg

It was designed by a man called Patrick Gleeson in the 70's

Very interesting...

kb
Posts: 57
Joined: Tue Oct 19, 2004 7:58 am
Location: Detroit

Post by kb » Sun Dec 25, 2005 3:02 pm

Good job finding the thing. The Murf even has the same kind of slider knobs.

sir_dss
Posts: 513
Joined: Mon Jul 21, 2003 8:00 pm
Location: CAL LE FOR NE YA

Post by sir_dss » Sun Dec 25, 2005 3:33 pm

I love the Moog MuRF and it's cool that MoogMusic brought this strange processor back from the grave.

User avatar
MC
Posts: 2925
Joined: Tue Aug 12, 2003 2:20 pm
Location: Secluded Tranquil Tropical Country

Post by MC » Mon Dec 26, 2005 12:09 am

Moog Custom Engineering back in the 70s made a string filter with multiple resonant filter banks, I don't remember how many somewhere between 24 and 40 banks. http://www.modusonics.com (Mike Bucki's business, who used to work at Moog CE) stills makes them.

The concept of multiple resonant banks goes back a few decades. I vaguely remember a discussion on SynthDIY on them.

sir_dss
Posts: 513
Joined: Mon Jul 21, 2003 8:00 pm
Location: CAL LE FOR NE YA

Post by sir_dss » Mon Dec 26, 2005 1:37 am

Wasn't the String Filter built by Harold Bode who made the Frequency Shifter?

User avatar
MC
Posts: 2925
Joined: Tue Aug 12, 2003 2:20 pm
Location: Secluded Tranquil Tropical Country

Post by MC » Mon Dec 26, 2005 11:33 am

sir_dss wrote:Wasn't the String Filter built by Harold Bode who made the Frequency Shifter?
Nope, Bode did not design/build the string filter.

Post Reply