Tricks with an On-Off-On Switch – Will This Work?

[Anonymous]

i’d like to add a switch to a project that will give me three different resistance values.  ultimately, this is for the Ratt DLX and the Ruetz mod, with three different values aprox. from 0R – 100R.  i have a 3PDT On-Off-On switch.  will this work?
On#1 = parallel resistors 120R + 1R = 0.9R
Off = resistor 120R
On#2 = parallel resistors 120R + 68R = 43.4R

[Anonymous]

oh, more importantly.  if that works, are there better ways to do it with a toggle 🙂  looks like i could pull it off with a DPDT also.  please and thank you.

[Anonymous]

You can get three different resistance values by using just a SPDT ON-OFF-ON switch!  Go to the build document for the MORC compressor in the shop and see what Tonmann did with a SPDT switch and three resistors, R16, R17 and R18.  It;s very clever!

[Anonymous]

ah, perfect direction, thank you. please correct me as i go but i think this explains it out of context?

 

 

 

[Anonymous]

thanks again, Wilkie1!  here’s the kajigger, in case others want/need one.  3 positions, 3 resistances, 1 pole.

[mybud]

The intricacies of switches stump me more often than not. So, if there was a ‘like’ button, I’d be pressing it for all it’s worth for this useful advice. Perhaps something to think about including in a website revamp?

Best to all and may the pedal gods bless your builds.

[Author]

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