Engine tachometer
18th October 1968, Page 79
18th October 1968
Page 79
Page 79, 18th October 1968
— Engine tachometer
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An optical tachometer known as the 643 announced by V. L. Churchill and Co. Ltd., is specially suitable for compressionignition engines and petrol engines of the fuel-injection type but can be applied to any engine. The instrument utilizes a light beam and photoelectric cell and can be operated by any rotating part. A powerful magnetic base enables the probe head to be easily attached to the part.
A portable cabinet contains an amplifier and batteries as well as the meter. The split scale covers ranges of 0 /1,000 rpm and 0,5,000 rpm.
Made by: V. L. Churchill and Co. Ltd., PO Box No. 3, London Road, Daventry, Northants.