Up for sale here is this nice vintage Knight mono tube preamplifier.  It is in good shape but does have some overall wear and some rust on the knob centers.  The faceplate is in extremely nice condition.  This normally uses 3 tubes but they are not included, sorry.  All 4 feet are there.  This is completely untested and is sold as-is.  It will probably work fine, honestly.  I will guarantee the transformer to be good.  Knight stuff usually works pretty well.  Please see my pictures for details.

US shipping and handling is $30, and international is $100.  I accept Paypal.  If you have any questions, please ask.

I have a number of other vintage stereo components, collectibles, and vintage parts listed--feel free to take a look!