element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Members
    Members
    • Benefits of Membership
    • Achievement Levels
    • Members Area
    • Personal Blogs
    • Feedback and Support
    • What's New on element14
  • Learn
    Learn
    • Learning Center
    • eBooks
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • Experts & Guidance
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Dev Tools
    • Manufacturers
    • Raspberry Pi
    • RoadTests & Reviews
    • Avnet Boards Community
    • Product Groups
  • Store
    Store
    • Visit Your Store
    • 'Choose another store...'
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
Personal Blogs
  • Members
  • More
Personal Blogs
Legacy Personal Blogs Digital guitar.
  • Blog
  • Documents
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Blog Post Actions
  • Subscribe by email
  • More
  • Cancel
  • Share
  • Subscribe by email
  • More
  • Cancel
Group Actions
  • Group RSS
  • More
  • Cancel
Engagement
  • Author Author: alanarnoldguitars
  • Date Created: 9 Apr 2019 5:50 PM Date Created
  • Views 334 views
  • Likes 1 like
  • Comments 2 comments
Related
Recommended

Digital guitar.

alanarnoldguitars
alanarnoldguitars
9 Apr 2019

So, here's the thing !

Electric guitars, with humbucker pick ups, would usually have 500k ohm analog pots.

I want to go over to digital pots, that control the analog signal.

But ! I can't find 500k ohm digipots !

250 k ohm I've found, and then a jump to 1M ohm.

Anyone know where 500k ohm digipots are to be found?

Or how 250 k ohm or 1M ohm could be used, with extra circuitry?

Also. Guitar Tone controls use a simple, single capacitor to ground low pass filter.

Can I do the same even if it's a digital pot, as long as the signal is analog ?

The purpose is to be able to "snapshot" the settings, and save into a micro controller, for recall at the press of a button.

Thanks in advance .

Alan Arnold Guitars.

  • Sign in to reply

Top Comments

  • 14rhb
    14rhb over 4 years ago +2
    Are they expensive? If not my simple suggestion would be to use two wired up in series, either control separately to give the fine resolution of an individual unit, or somehow gang the digital control…
  • genebren
    genebren over 4 years ago +1
    Alan, You could use a 1M ohm digital pot and limit its ability to select all of the available taps (just 128 of the 256), yielding you a 500K pot. Either that, or you could place a 1M ohm resistor in parallel…
  • genebren
    genebren over 4 years ago

    Alan,

     

    You could use a 1M ohm digital pot and limit its ability to select all of the available taps (just 128 of the 256), yielding you a 500K pot.  Either that, or you could place a 1M ohm resistor in parallel with a 1M ohm pot and have the equivalent of a 500K ohm pot.  Are you planning on a pair of up/down buttons to adjust the pot?  Are you planning on having a display to show the setting value?

     

    Good luck,

    Gene

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • More
    • Cancel
  • 14rhb
    14rhb over 4 years ago

    Are they expensive? If not my simple suggestion would be to use two wired up in series, either control separately to give the fine resolution of an individual unit, or somehow gang the digital control signal up so they work at the same value (if that is possible) and your resolution would then be half the resolution of the single unit.

     

    What part numbers are you looking at using?

     

    Rod

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • More
    • Cancel
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2023 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube