13-01-2014, 07:36 PM
Thanks, Colin; it's only taken the best part of three years for somebody to reply to this thread!
Since then I've added another 555 so it can also be used as a dedicated signal injector.
A also made another continuity tester with an LED and a couple of 2N2222s to keep in my jacket pocket. It's not as good as 'Old Faithful' though.
http://www.youtube.com/watch?v=l5eZ69JrL14
- Joe
Since then I've added another 555 so it can also be used as a dedicated signal injector.
A also made another continuity tester with an LED and a couple of 2N2222s to keep in my jacket pocket. It's not as good as 'Old Faithful' though.
http://www.youtube.com/watch?v=l5eZ69JrL14
- Joe
