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Show ( b) RustRak 4- channel event recorder ( suitable for wind velocity only). 110 v AC clock drive, 24 v DC pen solenoids ( Allied Electronics Co., 2400 W. Washington Blvd., Chicago, 111. 60612. Cat. No. 908- 0391), specify 3"/ hr. chart speed, $ 136.50. 24 v DC power supply, Cat. No. 908- 0432, $ 31.12. A29. Analog Recorder. ( a) Single channel: Esterline- Angus Model A601C Recording Mi 11iammeter, 0- 1 ma range, hand- wound spring chart drive. Uses chart No. 4313C ( 3"/ hr.). ( b) Dual channel: Esterline- Angus Model A602- C with No. 2 hand- wound spring chart drive, each channel 0- 1 ma., $ 754.00 ( portable case). Uses chart No. 31085ZB ( 1- 1/ 2"/ hr.). ( See B4) Consult manufacturer's representative for further ordering details of above recorders. A30. Hygrothermograph. Vertical drum type. WSWB Spec 450.8202 { S. Ik. No. 255) $ 230.00. ( FSN 6685- 551- 3188, $ 122.00). A31. Temperature Telemeter. See equipment made by Yellow Springs Instrument Co. and distributed by scientific supply companies. A32. Electromechanical Counter. Veeder- Root Form No. Q 150704, 4- digit resetting, 24 v DC, $ 16.00. A33a. Dial- type Spring Scale. 6- kg. autopsy scale, 2 kg. per dial revolution, 10- gram graduations, Chatilion No. 806, $ 62.00. John Chatilion and Sons, 85 Cliff Street, New York, N. Y. ( Distributors in principal cities) A33b. Weather Bureau weighing scale. Detecto Mod. No. 0127- H- 40, 2- revolution 40- lb capacity with decal to read in inches of water. Available to U. S. Government agencies through interagency purchase from N0AA. About $ 70.00. A35- Transit Book No. 820020, Hardboard back; nylon coated, wire spiral binding, " Rite in rain" paper. Keuffel and Esser Co., 145 Yuma St., Denver, Colorado 80223, or other cities. 64 cents each. A36. Low- Temperature Instrument Grease. Hamilton Type T- 5211. $ 1.75 per ounce. Order direct from Hamilton Watch Company, Lancaster, Pennsylvania 17604. 56 |
