0006 - Build a Precision Substitution Resistor for under $20.

We sometimes needs precision resistor values for our electronics projects, but quality resistor substitution boxes can be expensive as can be keeping a stock of .1% resistors. However, a high precision substitution box can be built small change for those that only need it once in a while.

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ebay Vendors:

For pots and knobs: technicalaim https://www.ebay.ca/str/technicalaim

For suitable 4mm binding posts: anbest001 https://www.ebay.ca/str/anbest001

For suitable box: acgx370 https://www.ebay.ca/str/acgx370