Navy electronic equipment manual

They are very heavy and made from non-ferrous metal, normally brass. This piece is non functional as all parts under compass dial are missing. Would restore nicely to be a great conversation piece. One close up shot shows the trap door open to dial illumination light bulb area.

Also, fully rebuilt compass gyros are available elsewhere on this site that will fit the compass well. This meter was used shipboard in WWII to set depth of sonar microphones. Made by Hickok for Bludworth Marine in 's. Great conversation piece! Only one available! Thank-you for visiting our online surplus electronic super store. In order to use this site, your web browser must allow cookies and have javascript enabled. By using this site, you aknowledge our privacy statement and agree to accept cookies.

It had a range of , , , and The ionization chamber was The case was welded aluminum with a grey hammertone finish. It had mercury batteries, provisions for arctic use, and a check switch to test operation by pulsing he ion chamber. It has an ionization chamber with a low range of 0. It had a logarithmic scale. It has an L-shaped profile. The ionization chamber has a central electrode sealed in an air atmosphere. It was described as the "wheel horse" for the health physicists in the laboratory.

Several commercial instruments were evaluated or used by the military in the 's. Examples of several of those instruments are highlighted below. The National Technical Laboratories developed the Model MX-2 instrument using an ionization chamber which could measure hard gammas as well as soft gammas and betas. It was widely known as the Beckman Meter. The ionization chamber was 50 cubic inches made of bakelite coated with graphite. The Juno was an alpha, beta and gamma survey meter.

It could discriminate between all three types of radiation. The unit has an ionization chamber and a series of shields that can be put in place via a lever on the handle. The alpha shield is made of 0. The ionization chamber has a 0.

Two portable alpha proportional counters were developed by the Manhattan Project. The unit were found to not be useful in the military environment. It had a range of and , cpm. It weighed 16 lbs. The case was grey anodized aluminum.

The probe was an air proportional counter with an open face with an area of 75 cm 2. It had a scale reading of and , cpm. Under a contract with the U. It has a six inch, degree meter. It has a five decade logarithmic scale to display intensities from 0. The instrument is shaped like and inverted L and can be clipped onto your belt so that the top of the unit is easy to read. The unit is small gamma measuring instrument with an ionization chamber.

Each leg measures 4. The unit weighs 1 lb. It was designed as a directional indictor for beta radiation. It has two ion chambers one above the other. The lower window has a thin window and will detect both beta and gamma.

The back chamber only detects gammas. By balancing the gamma current, the beta could be measured. It used a single 1. It has a 3. It used a scintillaion crystal. The Mark V Model I beta-contamination monitor was introduced in It was a portable instrument for measuring localized radioactivity in regions of fission-production contamination.

The contamination can be determined from the beta-gamma ratio. It has a gas flow detector using a mixture of argon and carbon dioxide. Naval Radiological Defense Laboratory. It is an alpha detector with a photomultiplier tube with an aluminum-covered zinc-sulphide detector.

It has series of slots with total area of 17 cm 2 exposed for the 60 cm 2 probe area. It has an range of 2 x 10 6 disintegrations per minute per 17 cm 2. The following section provides several schematic diagrams of a variety of portable radiation detectors used by the military.

The following section provides a few photographs from the 's's with military soldiers using radiation detection equipment in exercises. Contamination measurement with a portable GM detector after decontaminating a tank 's. Tank providing shielding with probe on front to measure exposure rate levels 's.

It was thought that the Germans might mark their underground anti-tank mines with a radioactive material, i. The U. Project Mamie is the code name for marking friendly mines with radioactive materials. Project Dinah was the code name for the whole non-metallic mine detector program, of which radiation detection was part.

Small buttons of radioactive material are planted on top of or adjacent to the buried mine. The marking scheme was developed independently by the U. The Germans were marking their Topf mines and had developed the Stuttgart 43 instrument for detection.

The company did not want to disclose the type of detector because it had been developed under a previous contract. The detector was cylindrical in shape and measured 2" diameter by 4" long. The signal was audible via a tone where the intensity indicated increasing source strength. It was sensitive to 2 micrograms equivalents of radium buried 2 to 3 inches in the ground.

The Massachusetts Institute of Technology produced the markers. The markers were a Co chloride solution in small glass ampoules each containing 2. In addition, markers were made in the form of artificial rocks containing activated cobalt. The rocks were "spheres of porous ceramic material saturated with aqueous solution of cobalt nitrate".

Co was preferred as it did not emit alphas like radium and was not similar in chemistry to calcium. These components are the building blocks of some of the most successful analog mechanical computers ever built. Basic Fire Control Mechanisms Maintenance , OP a, , has maintenance procedures for the mechanical computing elements used in U.

Standard Fire Control Symbols , OP , , and established a set of standard fire control symbols to be used in various U. Computer Mark 1 and Mods. Maintenance Volume 1 , Ordnance Pamphlet A, , is the first half of the maintenance manual for the Mark 1 computer. Stable Element Mark 6 Ordnance Pamphlet , , describes the stable element that determines the pitch and roll of the ship and supplies this to the fire control computer.

Rangefinders Marks 58; 58, Mod. I; 65; and 65, Mod. Index Of Assemblies For U. Dummy Log , I. Instruction Book No. Optical Instruments Data Sheets , O. Boresights and Boresight Telescopes , O.

This provides insight into how PT Boats where used. This provides the builders specifications for PT Numerous details about PT Boats appear in the manual that provide insight to both the technology and the life aboard PT Boats. Torpedo Angle Solvers Mark 7 and Mods. Describes the circular slide rule used to calculate torpedo gyro angle.

Tactical Data For Torpedoes Mark Maintenance Instructions For Mark 18 and Mods. Torpedoes , O. The Whitehead Torpedo U. Mark I. Compressors and Launching Tubes , , has the support equipment for the Whitehead torpedo.

The drawings of the launching tubes are very rare. The Howell Torpedo, From it was used as an antisurface ship torpedo fired from battleships and torpedo-boats. The Schwartzkopff Torpedo U. It was used as an antisurface ship torpedo fired from battleships and torpedo-boats.

Depth Charges, Mark 6, Mark 6 Mod. Torpedotown U. The merchant equivalent of Basic Military Requirements, it has details of lifeboats and basics of life at sea. Museum ships stabilizing or restoring their electrical systems will appreciate many parts of the manual. Items such as the proper ways of working with armored cable, lacing, etc.

Museum ships stabilizing or restoring their radios or radars systems will appreciate many parts of the manual. Introduction to Radio , An introduction to electronics and naval radio. It covers basic tube electronics in the beginning, then explains the basic operating instructions for typical WW II radios.

Notes on Servicing Radio and Sound Equipment , , is a training manual that introduces the art of tube radio and sound equipment repair. All passive and active devices need to be considered separately.

Recommend the user refer to the individual part chapters in this manual when attempting to derate a MCM or hybrid device, as shown in Table 1. When passive structures are used in microwave applications, properly designed transmission lines and other passive microwave components should not require power derating.

In cases of poor design or fabrication, transmission lines can fail as a result of electrical over stress EOS , resulting in an open circuit. Poor design can also limit the reliability of other passive structures; however, normally it is the active device elements, which pose the primary reliability threat for microwave structures.

Part Type. Maximum Allowable Rating.