electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
 Forum index » DIY Hardware and Software » Thomas Henry designs
Mankato / Range Switch?
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 1 [4 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
JCM



Joined: Jul 21, 2008
Posts: 15
Location: MPLS

PostPosted: Sat Nov 15, 2008 2:50 pm    Post subject: Mankato / Range Switch? Reply with quote  Mark this post and the followings unread

Let's say someone went ahead and put a range switch on their Mankato panel and can't figure out how to wire it up. How would this person go about wiring up a range switch?!
Back to top
View user's profile Send private message
Tim Servo



Joined: Jul 16, 2006
Posts: 924
Location: Silicon Valley
Audio files: 11

PostPosted: Sat Nov 15, 2008 10:46 pm    Post subject: Mankato / Range Switch? Reply with quote  Mark this post and the followings unread

Hey JC,

Tim from Magic Smoke here. Well, if you wanted to add a range switch to the Mankato, you'd have to switch out all four timing caps (330pF: C4, 7, 10, 13). Depending on how different the new caps were, you might also have to change the input caps to each section (560pF: C3, 6, 9, 12). Basically, you're looking at a multi-pole rotary switch to implement this.

A better question might be "why?" The Mankato has a range of 0.016Hz (1 cycle/60 seconds) to 22kHz, so it covers an extremely wide range of low frequencies, the entire audio range, and up into ultrasonic territory. With good quality polystyrene caps and a nice clean board, you might even get a wider range than this. We mentioned possibly changing the caps in our early literature (and on our web site), but as we built them and saw the available range, we didn't really explore it any further. Essentially, the Mankato really doesn't need a range switch. Wink If you have a spare switch on the front panel, you might want to add a DC / AC coupling option to one of the audio inputs. Others here might have other suggestions, but implementing a range switch on the Mankato (or any four-pole VCF, for that matter), is a bit tricky. Shout out if this doesn't make sense.


Tim (brother, can you spare a switch) Servo
Back to top
View user's profile Send private message
JCM



Joined: Jul 21, 2008
Posts: 15
Location: MPLS

PostPosted: Thu Nov 20, 2008 9:05 am    Post subject: Reply with quote  Mark this post and the followings unread

Hmmm,
Thanks for the info! I guess this person will just have to deal with the tiny little hole in his Mankato panel.
Back to top
View user's profile Send private message
Tronato



Joined: Sep 21, 2007
Posts: 274
Location: Florida
Audio files: 2

PostPosted: Thu Nov 20, 2008 11:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Hello!

If the tiny little hole is too much of a problem, why not install an On - Off switch...

Thanks!

TRON
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: Scott Stites
Page 1 of 1 [4 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Thomas Henry designs
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use