Up for sale here is this rare vintage Daven Spec 7164-1 rheostat stepped attenuator. This is marked 728118 ohms 2 db steps. It is guaranteed to work. Please see my pictures for details.

US shipping and handling is $5, and international is $18. If you have any questions, please ask.

I have more attenuators and other vintage electronics listed--feel free to take a look!