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Our History | Carborundum Abrasives

2021-10-15 · Abrasive innovation has been a way of life for the Carborundum. Since then—in city and country, war and peace—Carborundum has been a manufacturer of high quality forming and finishing products. The company''s extensive list of firsts …

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Carborundum Crystal Detector Radio part Long Distance

Carborundum Crystal Detector Radio part Long Distance Wireless Instrument Company; Boston,, build 1909 ?, 9 pictures, United States of America , schematics

CARBORUNDUM CRYSTAL RADIO Diode Detector Stand …

CARBORUNDUM CRYSTAL RADIO Diode Detector Stand Wood Base Brass and Bias Diode - $28.47. FOR SALE! Carborundum Crystal Radio Diode Detector Stand …

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The carborundum detector was popular because its sturdy contact did not require readjustment each time it was used, like the Carborundum Company | MyCompanies Wiki | Fandom Saint-Gobain S.A. (1995-present) The Carborundum Company, doing business as Carborundum Abrasives, North America, was founded on Septeer 21, 1891 by Edward G. Acheson in

Antique Radio Forums • View topic - Carborundum Detector

A carborundum detector requires a bias voltage to achieve sensitivity comparable to galena detectors. The advantage of the carborundum detector is that it can be asseled with several pounds of pressure on a steel contact point, making it much less subject to misadjustment than the galena detector with its fine swhisker.

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radarsp

About the Author Dr. Mark Richards is a semi-retired Principal Research Engineer and Adjunct Professor of Electrical and Computer Engineering at the Georgia Institute of Technology. He has been engaged for over 30 years in radar signal processing research, primarily at the Georgia Tech Research Institute (GTRI) where he last served as Chief of the Radar Systems Division.

Antique Radio Forums :: View topic - Reproduction of a

MRL (Modern Radio Laboratories) has, or had a carborundum detector assely. alog nuer 9-4. I have one here in the little green box. You can either inquire to them to see if they still sell it, or pay the two bucks for their alog at their website. They call it a Carborundum crystal, but it came as an asseled detector unit.

Section Devoted to the Practical Assistance of Beginner.

2020-11-1 · NOi''E.1IRER 2¢tlr; 1926. [email protected]@gg In OpIlC, 701 A Section Devoted USING THE CARBORUNDUM DETECTOR. There seems to be a definite revival of interest in the carborundum detec- tor, partly due, no doubt, to the fact that it is now more easily obtainable both in the " cartridge " and un- mounted forms. When comparatively weak signals are to be …

Carborundum Silicon Carbide Crystal Radio Radio Detector

Carborundum Silicon Carbide Crystal Radio Radio Detector Diode-7/16 Diameter: $10.00. 1 piece Precision Cast Silicon CaroffereCrystal Radio Crystal Radio DiodeCast in Low temp alloy7/16" Diameter Suitable to fit Most Older and Newer DetectorsThis Cast Crystal is Brand New and recently ManufacturedSilicon Caroffere (Carborundum) Requires Higher Contact force with the …

GitHub - XiaoyuHuang96/MobilenetV3SSDLite-tfkeras

2020-6-10 · MobilenetV3SSDLite-tfkeras Environments Introductions overall model structure convert tf ckpt to keras models converted model''s inference and test keras model''s train,inference and test reference. tensorflow object detection api; Introductions overall. tf ckpt model and keras model have some difference in preprocess phase, model details and

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CII. Luminous carborundum detector and detection effect

2009-4-1 · (1928). CII. Luminous carborundum detector and detection effect and oscillations with crystals. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science: Vol. 6, No. 39, pp. 1024-1044.

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carborundum detector - English definition, grammar

Available on-line at: Foundation for German communiion and related technologies Other inventors who patented crystal R.F. detectors: In 1906, Henry Harrison Chase Dunwoody (1843-1933) of Washington, D.C., a retired general of the US Army''s Signal Corps, received a patent for a carborundum R.F. detector.

Carborundum Crystal Detector Radio part Long Distance

Carborundum Crystal Detector Radio part Long Distance Wireless Instrument Company; Boston,, build 1909 ?, 9 pictures, United States of America , schematics

Carborundum Crystal Detector Radio part Long Distance

Marble based carborundum crystal detector by the Long Distance Wireless Instument Company. Invented in 1906 by Henry H. C. Dunwood y , this consisted of a piece of silicon carbide (SiC, then known by the trade name carborundum), either clamped between two flat metal contacts, or mounted in fusible allo y in a metal cup with a contact consisting

Magnetic Hold Carborundum Radio Diode Detector Stand …

2019-10-4 · Pine Wood Base with Brass Fittings and Bias Diode,NEW Magnetic Hold Attraction Crystal Carborundum Radio Diode Stand, Carborundum Crystal Radio Diode Stand in Pine Wood Base with Brass Hardware and Torsion Whisker, Top Brands Bottom Prices New fashion new quality Deals of the day up to 25% off Latest arrivals, limited discounts.

Detector No.30 fixed Radio part Carborundum Company,

Model: Detector No.30 [fixed] - Carborundum Company, Niagara. Material. Various materials. Dimensions (WHD) 70 x 14 x 14 mm / 2.8 x 0.6 x 0.6 inch. Notes. Used with the Stabilizing Detector Unit. There is also an adjustable No.30. Price in first year of sale.

Carborundum detector. - NYPL Digital Collections

MLA Format. George Arents Collection, The New York Public Library. "Carborundum detector." The New York Public Library Digital Collections.

High-Tech beep gas leak detector Designed for Reliability

Browse through the various kinds of attractive beep gas leak detector on Alibaba. Find feature-heavy and highly durable beep gas leak detector at the most exciting discounted prices.

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carborundum. . n. 【】,。. "carborundum paper" ()。. After setting, the surfaces of the specimens are ground down using carborundum and alumina . ,。. carborundum。.

427 CARBORUNDUM STABILISING DETECTOR UNIT

2020-11-2 · the Detector can be made to match the impedance of any circuit-think what this means on reflex sets. For the reception of tones of natural quality equip your set with the CARBORUNDUM STABILISING DETECTOR UNIT, which is the only really permanent Detector, and the only perfect Detector for crystal and reflex receivers. BRITISH MADE.

427 CARBORUNDUM STABILISING DETECTOR UNIT

2020-11-2 · the Detector can be made to match the impedance of any circuit-think what this means on reflex sets. For the reception of tones of natural quality equip your set with the CARBORUNDUM STABILISING DETECTOR UNIT, which is the only really permanent Detector, and the only perfect Detector for crystal and reflex receivers. BRITISH MADE.