Simple voltage drop needed

Submitted by rolijen on Sun, 10/06/2019 - 08:42

Hi. Newbie here. I have a guitar amplifier that has a power indicator light on the front Panel. The two wires of the power indicator connect to two terminals on the main circuit board. I’ve measured 15.5vdc across these two terminals. The indicator lamp is rated 12vdc.

Here’s my question: I would like to replace the indicator Light with a different style of light. That different style only comes in a 6vdc version. How do I drop voltage to close to 6v? Zener? Resistor divider? I just need a simple answer and potentially a basic diagram as it's been a few years since I studied electronics.  Thank you!



Voltage drop is the decrease of electrical potential along the path of a current flowing in an electrical circuit. Voltage drops in the internal resistance of the source, across conductors, across contacts, and across connectors are undesirable because some of the energy supplied is dissipated. The voltage drop across the electrical load is proportional to the power available to be converted in that load to some other useful form of energy.
For example, an electric space heater may have a resistance of ten ohms, and the wires that supply it may have a resistance of 0.2 ohms, about 2% of the total circuit resistance. This means that approximately 2% of the supplied voltage is lost in the wire itself. An excessive voltage drop may result in the unsatisfactory performance of a space heater and overheating of the wires and connections.
National and local electrical codes may set guidelines for the maximum voltage drop allowed in electrical wiring to ensure efficiency of distribution and proper operation of electrical equipment. The maximum permitted voltage drop varies from one country to another.In electronic design and power transmission, various techniques are employed to compensate for the effect of voltage drop on long circuits or where voltage levels must be accurately maintained.

  Joined November 07, 2019      124
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