Rangemaster

The Rangemaster is a legendary treble booster from the 1960s, used by Eric Clapton and Brian May. It produces a brighter tone, adding color to the signal.
Steps
  1. Overview
  2. Designators and components
  3. PCB assembly
  4. Enclosure and wiring
  5. Enclosure drilling
Categories
DIY Projects, DIY Guitar Effects
Created by DHEA
Status: Active
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Enclosure and wiring Step 4 of 5

PLACEMENT

Mount the assembled PCB and the rest of the components (DC jack, input/output jacks, 9V battery clip, 3PDT foot switch, led...) in a metal enclosure. Connect the ground of the circuit to the enclosure (the ground of the jacks are in contact with the enclosure). The following figures show the components mounted in both 1590A and 1590B enclosures.

          

Use a pair of flat-nose pliers to snap off the anti-rotation tab on each potentiometer.

WIRING

Use a 24 AWG stranded wire to connect all components as shown in the following figures. The order in which you connect the ground (GND) does not matter, as long as all components are eventually connected. The diode led requires a current limiter resistor, a value between 2.2kΩ and 4.7kΩ is recommended for standard LEDs. 

Wiring for PNP transistors (Positive ground) without DC jack

Wiring for PNP transistors (Positive ground) with DC jack

Voltage inverter (PCB and Instructions) 

A positive ground pedal cannot be powered on the same daisy chain as your standard negative ground pedals. Use the Charge Pump PCB to build a voltage inverter, allowing you to power it in chain with the rest of your pedals.

Wiring for NPN transistors (Negative ground)

 

PCB FOR 3PDT FOOTSWITCH (PCB and Instructions) (Only for negative ground - NPN transistors)

This PCB simplifies wiring and helps you create a neat circuit with reduced noise. It also includes dedicated pads for the LED and its current-limiting resistor.

 

PCB FOR 1590B ENCLOSURE (PCB and Instructions) (Only for negative ground - NPN transistors)

This PCB simplifies building your DIY guitar pedal in a 1590B enclosure. With the LED, jacks, and footswitch mounted directly to the board, you only need to wire the battery and the effect PCB.

To connect the 1590B PCB and the effect PCB, you can either mount a XH 4-pin male connector or solder wires directly as shown in the following figure. The PCB pins are labeled as "GND", "+V", "FROM FX", and "TO FX". Connect the "FROM FX" pin to the output of the effect PCB and the "TO FX" pin to the input of the effect PCB.

  

 

PCB FOR 1590B ENCLOSURE (PCB and Instructions) (For positive ground - PNP transistors)

Install the Voltage inverter in the 1590B enclosure, and wire the components as shown in the figure below.

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