Part Number: 1521-DC (Ne) Part Number: 1521E (No description) Part Number: 1521E-14S-02 (Ne) Part Number: 1521EBC0403 (Ancra) Part Number: 1521EBC1212 (Ancra) Part Number: 1521EK (No description) Part Number: 1521F2B (Valve) Part Number: 1521FAA (Ne) Part Number: 1521FL (Alcatel) Part Number: 1521FLAT (Ne) Part Number: 1521FS (Resistor variable) Part Number: 1521FS1K (Resistor variable) Part Number: 1521FS2K (Potentiometer) Part Number: 152-1G (Ne)