Crystal puller made in 1967 and used at the Royal Signals and Radar Establishment, Malvern, described as "the first" Crystal puller made in 1967 and used at the Royal Signals and Radar Establishment
Prototype crystal growth machine developed at the Royal Radar Establishment with control console and accessories, 1960 Prototype crystal growth machine developed at the Royal Radar Establishment with control console and accessories 1960
Crystal puller made by Hamco Machine and Electronics Corp. of Rochester, New York, with control and power units, mid-1970's. Crystal puller made by Hamco Machine and Electronics Corp. of Rochester