43IU. COSSOR, OFFSET PARALLELOGRAM ELECTRODE CAGE, SWAN NECK GETTER PAN, 1952 MANUFACTURE, YELLOW PRINT, MARCH 1952 MANUFACTURE
43IU. COSSOR, OFFSET PARALLELOGRAM ELECTRODE CAGE, SWAN NECK GETTER PAN, 1952 MANUFACTURE, YELLOW PRINT, MARCH 1952 MANUFACTURE
A beautiful 43IU with the large envelope and sculpted base. Showing excellent emission and matching for each diode section within the envelope.