Z77, OSRAM, MARCONI, NEW BOXED, EF91 5A/160H, 5A/160K, 6AM6, 6F12, 8D3, CV138, HP6, SP6, Z77

Z21, Z21MET, MARCONI, NEW BOXED, 215SG, CV1018, CV3835, CV3837, KTZ21, VR18

Z66, MARCONI, NEW BOXED, CV3839

ZD17, MARCONI,, WHITE BOX, DAF91, 1FD9, 1S5, CV784, ZD17, AS USED IN, R209, WS88, SPY SET 30/1,

ZM1020, MULLARD NEW BOXED, GN4, GN4A RED FILTERED, NIXIE TUBE, AS USED IN RACAL INSTRUMENTS

ZM1020, MULLARD, NIXIE TUBE, NOS BULK PACKED, GN4, GN4A RED FILTERED, AS USED IN RACAL INSTRUMENTS