Joranalogue TEST 3 Build Instructions

Eurorack v/ma meter

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INTRODUCTION

Test 3 is a purpose-designed tool for measuring
voltages and currents in your Eurorack system.
This means that just a single circuit board or
module can now replace a convoluted test setup
with multiple multimeters, custom cables etc.
Two push buttons allow you to cycle the value
shown on the LED display between three
measurements (voltage, current and stored peak
current) of the three power rails. The peak
currents continually update in the background
on all rails, making it ideal for quickly getting
maximum current figures.
Apart from measuring the current draw of a
single module, Test 3 also supports testing power
supplies and cables, measuring an entire system
(up to 1 A of current on each rail), troubleshooting
DIY modules, powering a skiff or breadboard
from a larger system...
BUILD INSTRUCTIONS
Test 3 is available as a Do-It-Yourself ('DIY') Kit
with an optional Front Panel Kit.
For detailed build instructions, scan the QR code
below with your mobile device or visit this URL:
https://joranalogue.com/test3/build
The Build Instructions document also lists the
package contents for both the DIY Kit and Front
Panel Kit.
1
TEST 3
EURORACK V/mA METER

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Summary of Contents for Joranalogue TEST 3

  • Page 1 INTRODUCTION BUILD INSTRUCTIONS Test 3 is a purpose-designed tool for measuring Test 3 is available as a Do-It-Yourself (‘DIY’) Kit voltages and currents in your Eurorack system. with an optional Front Panel Kit. This means that just a single circuit board or...
  • Page 2 TEST 3 EURORACK V/mA METER CONTROLS & CONNECTIONS 1 LED DISPLAY The selected measurement of the selected power rail is shown on the LED display. If the measurement goes above the limit, the display will blink to indicate an overload condition.
  • Page 3 Test 3 allows you to check the voltage rails of a power supply. Simply set it to V mode, and cycle through the rails using the rail button. The measured voltages should be within about 10 % of their nominal values.
  • Page 4 +12 rail. Negligible current (< 1 mA) is drawn from the +5 and −12 rails if these are available. At least 7 V is required on the +12 rail for Test 3 to power up and function properly. POWER PROTECTION...
  • Page 5 With compliments to the following fine people, who helped to make Test 3 a reality! Björn Jauss Boris Uytterhaegen Eric Lukac-Kuruc François Gaspard Ģirts Ozoliņš Gregory Delabelle Jan D’Hooghe Jens Van Daele Everyone at Wired Electronics Test 3 User Manual version 2023-06-26 ©...

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