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to move the rocks. He was fascinated by mirrors and had at least one in every room.He had one of the amplifiers from the prime focus of his first telescope, probably the one used at 900 MHz. It was of compact point-to-point construction and used two R.C.A. type 955 "acorn" thermionic valves. All the rubber-insulated wires in it had perished and the rubber was hard and crumbly. He powered this amplifier, and all his later receivers at Dennistoun, from batteries, to avoid interference entering the

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