Built myself a retro signal tracer for tube radios

[dieseljeep]

Originally Posted by VTVM

That's exactly what I ended up using!

What did you use for punching the holes in the aluminum chassis. They look a lot cleaner than a drilled hole.
BTW, I never saw a 6AL5 of that style. It must be foreign make.
I would've liked to have seen the inside of the probe.
I have a fairly new Hickok, signal tracer, set tester. There's a tube in the probe, as well.