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> 1931 standard rtma color code indicator wheel : resisto
1931 standard rtma color code indicator wheel : resisto
1931 Standard RTMA Color Code Indicator Wheel : Resistors
Here is a electrical color code wheel produced by the Continental Carbon Co. of Cleveland, Ohio. On the front of the guide are 3 separate wheels for “Câ€, “B†and “A†color Continental resistors. On the back is a sketch of a fixed composition resistor with an “ABCD†table. Nice vintage wheel !!
MANUFACTURER: Continental Carbon Inc.
CONDITION: Excellent overall. One stain on the back. See pics
