Build A Cheap DIY Signal Injector Pen Useful For Electronics Fault Finding - In A Pen!

A Signal Injector Pen is a really useful bit of kit for any electronics repair bench. But can we build one that actually fits inside a pen? Wanna find out? You just gotta press PLAY! This video is kindly sponsored by PCBway. Please give PCBWay a try for all your PCB needs.    / pcbway   If you use this link when creating a new PCBWay account and you will receive a free $5 discount coupon: https://www.pcbway.com/setinvite.aspx... Learn Electronics Repair is now on Discord! Come and join the fun, it's free.   / discord   It takes a lot of time and effort to make Youtube videos. If you enjoy my videos or they helped you with your own repairs please consider subscribing to my channel or click LIKE If you would like to help support this channel you could consider sending a Paypal donation or subscribing to my Patreon page. All monies received will go towards buying more items to repair and make interesting videos, or to improve my video recording equipment and will enable me to spend more time making better videos. If you subscribe to my Patreon you'll get my Whatsapp number and I'll give personal repair support You can send donations via this link https://www.paypal.com/paypalme/youtu... You can subscribe via this link   / learnelectronicsrepair   Thank you for your support. Richard