First example of branch arm coupler on glazed ceramic (SYNTOX) together with four later examples on saphire. 1965/66 branch arm coupler 1965/66
Three units, first X-band balanced mixer, second production example of X-band mixer, third S-band balanced mixer. c .1950 balanced mixers circa 1950
Two unmarked packs of 5 pre-production Germanium Junction Diode semi-conductors, c.1950 Germanium Junction Diode circa 1950
two pieces known as SHRIMP - 17GHz front end feature beam-lead gallium arsenide (GaAs) Shottky diodes. fisrt fabricated from six substrates, second fabricated as single MIC type VX4518 c1950 Shottky diodes (SHRIMP) circa 1972
Eight resitors used in the evaluation of noise / temperature ratio of detector / mixer crystal diode of resistor. c.1950 resistors circa 1950