Hoffman Amplifiers Tube Amplifier Forum

Other Stuff => Solid State => Topic started by: YVRTubeGeek on April 17, 2013, 10:34:23 pm

Title: Build a resistor decade box - cheap
Post by: YVRTubeGeek on April 17, 2013, 10:34:23 pm

This is a PDF of a project I'm working on.  Basically, it's kinda trivial but I think some will find it useful and it's viable because AdaFruit is selling stackable 10-position push up/down switches pretty cheap.  Note that this was written with the lowest-common denominator electronics hobbyist in mind.

Also, in the PDF I say I'm using 1/4W resistors but it turned out that 1/2W were about the same cost at DigiKey so I went with those.

-Arne

Title: Re: Build a resistor decade box - cheap
Post by: jjasilli on May 07, 2013, 10:59:01 am

Cool project!  Love those cool switches.

OTOH, a box stuffed with standard value resistors and/or capacitors is usually very handy, with no pressing need for lots of in-between incremental values.  When that is needed -- like maybe for a bias circuit -- I use a pot wired as a variable resistor for test/design purposes.   Got that idea from Doug's Library Pages.