Signal generator and test probe (with speaker/buzzer)

[the_grumpy_gnome]

This would be a nice troubleshooting tool to have.

 

[chongmagic]

It would be cool.

 

[Robert]

This is about 90% complete, I'm just working on a few last details.... although I hadn't planned for an integrated speaker.

 

[the_grumpy_gnome]

We can always stick the speaker leads into our mouths and judge by tingling, like with a 9v battery.

 

[Robert]

We can always stick the speaker leads into our mouths and judge by tingling, like with a 9v battery.

Doesn't work with tube amps.... ?