Vintage NOS cardboard window sign. Very cool Radio Tube testing.

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Vintage NOS cardboard window sign. Very cool Radio Tube testing.:
$5.00

Here, up for sale is a very cool \"Service Charge for Testing Radio Tubes\" sign. There is fading along the edges and a little damage on the corners but is generally in very good condition as can be seen in the photos. This is definitely a vintage item and would be great in a vocational school electronic shop, stereo store, or other place that sells electronics. feel free to contact me with questions about this very neat item. Thank you for visiting my store.