DECADE BOX TABLE OF CONTENTS Applications Decade Box

DECADE BOX

TABLE OF CONTENTS Applications • Decade Box vs Potentiometer • How It Works • • • Assembly • • Rotary Switch Resistors in Series Final Product Preparation Wiring & Connecting Testing Resources

APPLICATIONS • Guitar Pedals • Radios • Breadboarding • Basically Everything Circuit Design!

DECADE BOX VS POTENTIOMETER • Decade Box Discrete • Choice of options • • Potentiometer Continuous • Must choose range • • Effects accuracy

HOW IT WORKS

ROTARY SWITCH • Varies by: • Decks (similar to poles) • • Positions/Steps (similar to throws) • SPST Connection at once Connections, options SPDT DPST

RESISTORS IN SERIES • Resistors in series add their value • Req = R 1+R 2+R 3+…+Rn

FINAL PRODUCT • Resistance is equal to grounded resistors • Current follows path of least resistance

ASSEMBLY

PREPARATION • Six Rotary Switches • 10 Resistors per switch (60 total) • 3 Labeled, 3 non-labeled Red-Silver-Black-Red = 1 Ohm • Red-Gold (thick)-Black-Red = 10 Ohm • Red-Copper (thin)-Black-Red = 100 k. Ohm •

WIRING & CONNECTING

TESTING • Ohm Meter • Simple LED Circuit More Resistance = Less Current (V=IR) • Leads to dimmer LED •

RESOURCES • http: //www. circuitous. ca/11 Step. Box. html • https: //electronicsclub. info/switches. htm • https: //www. eevblog. com/forum/projects/diy-cheap-resistor-decadesubstitution-box/