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(!!!!) (Best Pair 1955) CV378=GZ37 Mullard UK "D" getter NOS 1955 no printing (56-56/40 and 57-57/40)
(!!!!) (Best Value Single) GZ37 Mullard UK NOS 1966-1967 slightly tilted glass (51/40 and 52/40)
(!!) (Single) E810F=7788 Philips Miniwatt SQ Holland gold pins low hours/tests like new 1965 (37.2ma) (Allnic)
(!) (Best Single) E810F=7788 Philips Miniwatt SQ Holland gold pins NOS 1967 (39ma) (Allnic)
6FG7 US Brands NOS (6 in stock)
E55L=8233 Mullard branded Philips NOS 1967 (59ma)
