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Transistor tester powerd from 2 AA batteries

Posted on Thursday, May 3rd, 2012 in Part Ninja, project logs by DP

Ferdinand added a dc/dc converter circuit to the transistor tester, allowing it to be powered from 2 AA batteries instead of a single 9volt. This project is similar to our Part Ninja, it’s designed to test various electronic components like transistors, diodes, resistors, etc, and display their pin out and basic specifications.

I built my own version of this handy tool last weekend. I replaced the linear regulator with a small boost-converter. Now the circuit can be powered with two AA batteries.

The PCB is sandwiched between the battery holder and LCD, so to provide a handy device without need for a case. I had a lot of fun designing and building the circuit, so thank you DP for highlighting this project.

Be sure to check out our video describing the Part Ninja project.

Via the forum.

This entry was posted on Thursday, May 3rd, 2012 at 1:00 am and is filed under Part Ninja, project logs. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

2 Responses to “Transistor tester powerd from 2 AA batteries”

  1. Cahyo says:

    Good Job And Thank’s Information …

  2. Ali Adil says:

    sir can i hav its circuit diagram ? ? ? plz sir

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Recent Comments

  • Bob: Free PCB for me!
  • Drone: Nice - but I'm most interested in the enclosure with the finger-leaf cover. Where did that come from? How to buy more?
  • Dave B: Got two of them. If you let the battery run flat, they don't charge! You have to pull the battery, and get enough charge in...
  • Bill F: My turn?
  • Chris: Ok!