AMSCO 1920s Black / Dark Brown 2 1/8" 54MM 0-100 Indicator Knob with Set Screw NOS NIB London CS7004 Tube One measured 81 while

Tube One measured 81 while Tube Two measured 88

It sounded very good

Tube One (Unitron 5654-LABELED

This double CD plays fine

Bottles: tall

AMSCO 1920s Black / Dark Brown 2 1/8" 54MM 0-100 Indicator Knob with Set Screw NOS NIB London CS7004 Tube One measured 81 whileThis new old stock, new in box AMSCO knob is in good shape, especially considering it is 100 years old plus or minus. At its base, it is 2 1 16 inches wide. The top is 3 inches wide and the knobs height is 1 inch. The shaft diameter is 1 4 inch and there is a set screw. WE HAVE THOUSANDS OF VINTAGE ELECTRONIC ITEMS. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO