Specialized

159-157-RA1 Relay, Reed. Mercury Hg-Wetted, Form C.

The mercury-wetted contact relay represents one of the more sophisticated types of relays made today. The early pioneer work in mercury-wetted contact switching dates back to the 1950’s, as telephone laboratory scientists sought out the “perfect contact”.

Reed relays use an external electromagnet to control the reed switch. The contacts are of magnetic material and the electromagnet acts directly on them without requiring an armature to move them. Sealed in a glass tube, the contacts are protected from corrosion. Mercury-wetted relays are fast in operation and have relatively good load carrying capacity and long life. The mercury films are reestablished at each contact closure and contact erosion is eliminated. The mercury films are stretchable, there is no contact bounce and because it is a mercury contact, the contact resistance is very low and idea for low level switching applications.

A mercury-wetted reed relay is a form of reed relay that employs a mercury switch, in which the contacts are wetted with mercury. Mercury reduces the contact resistance and mitigates the associated voltage drop. For high-speed applications, the mercury eliminates contact bounce, and provides virtually instantaneous circuit closure. Mercury wetted relays are position-sensitive and must be mounted according to the manufacturer's specifications. Because of the toxicity and expense of liquid mercury, these relays have increasingly fallen into disuse.

The high speed of switching action of the mercury-wetted relay is a notable advantage. The mercury globules on each contact coalesce, and the current rise time through the contacts is generally considered to be a few picoseconds. However, in a practical circuit it may be limited by the inductance of the contacts and wiring. It was quite common, before restrictions on the use of mercury, to use a mercury-wetted relay in the laboratory as a convenient means of generating fast rise time pulses, however although the rise time may be picoseconds, the exact timing of the event is, like all other types of relay, subject to considerable jitter, possibly milliseconds, due to mechanical imperfections. The only major weakness of a mercury wetted contact relay is the necessity to mount the relay within 30° of a vertical position, due to its position sensitivity.

Type: Form C

Contacts: SPDT.

Switched Load Rating: 2 Amp, 500 Volts Max, 100 VA Maximum

Carry Load Rating: 5 Amp

Contact Resistance: 14 Milliohms Typical, 20 Milliohms Max.

Packaging: Under High Pressure in Glass Capsules.

Approximate Dimensions 5.8mm D x 38mm Long. (0.225" X 1.5")

Life Expectancy: 1 billion operations minimum at rated load.

Note: Mercury Hg-Wetted.

Danger - High Pressure Glass Capsule- Handle with Care - User assumes responsibility and competency to handle this item.

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TRANSITION ENGINEERING - CX-1134 Connector, BNC.

Type  RFI FIlter

A balun /ˈbælʌn/ (portmanteau of "balanced to unbalanced") is an electrical device that converts between a balanced signal and an unbalanced signal. 

Premium extended CX-1134 RJ11 to BNC connector balun.

Compatible with AT&T, ITT, LEE DATA, MEMOREX and TELEX type A devices with data rate of 2.35Mbps.

Transmission distance is 50 feet min and 2500 feet maximum.

Unit has three winding transformer/choke configuration to filter RFI.

Coax Cable Requirement is 90-110 Ohm.

Made in USA

See SKU 4659 for RJ11 Cord.

Alternate: 555329-1

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TELEDYNE SYSTEMS - 17863-8913784-301 - Military Circuit Board Assembly.

17863-8913784-1 Has about 86 Flatpack ICs and 15 TO-5 relays and lots a Aurium. 3784-301(Nr on Connector) has 93 flatpack ICs an STC 1553 Dual Transceiver module.

2 Connecctors on boards and 5 more attached by flat cable. Varnished.

In Fixture 10.5" x 10.5" x 1.6", about 4 pounds

New Old Stock

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TELLABS - 81.2301 Rev A - Cablespan 2300 Shelf, Multi-Service Access Platform, Channel Bank Aassembly with Connectors.

Cablespan 2300 Universal Telephony Distribution System, designed to enable cable operators to increase the potential of existing hybrid fibre-coax networks by offering telephony, telecommuting and video conferencing; Cablespan is provided by Tellabs through a joint venture with Advanced Fibre Communications Inc, doing digital loop carrier technology in Petaluma, California.

Rack Mount Cablespan 2300 System Universal Telephone carrier.

26 Card Slots with Back Plane.

Material: Cold rolled steel - Zinc plated per ASTM-B633 Type II (Gold) SC2

New in Box.

Note: Retail was $1228.00

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IC. Cascadable GaAs MMIC amplifier, DC-3 GHZ. HBT technology, cascadable 50 Ohm gain block, 21dB gain +23dBm TOIP. Package: 4 Pin SMD. New. Learn More

Take standard "C" mount lenses - 1.85" mounting hole - 2.1 x 2.5 x 6.8"L Monochrome 12-pin female connector for Remote Control - BNC Video Out - Requires 12VDC 400mA P/S CCD HIGH RESOLUTION CAMERAS Learn More

Sarkes Tarzian - 2KV26-5A5-ZS Diode, Selenium Rectifier, Surge Arrester, Voltage Snubber.

A Selenium Rectifier is a type of metal rectifier, invented in 1933. They were originally used to replace vacuum tube rectifiers in power supplies for electronic equipment, and in high current battery charger applications. 

Type: Selenium Rectifier. 2-lead 10-wafer. Centre-Kooled - Blue.

Description: Rectifier, 10 Plates, 1" X 1"

Mounting Configuration: 0.164" Diameter hole

Nominal Dimensions: Depth: 1.0”, Overall Length: 2.062”, Overall Width: 1.50”

Breakdown Voltage: 350.0 Volts Nominal

Terminal Type: Solder Lug

Usage: Indoor/Outdoor

Vintage Genuine Sarkes Tarzian Selenium Rectifier - New Old Stock - Never Used

NSN 5920-00-892-8826 Replaces - NSN 6130-00-225-9017

Alternates: General Electric Co: 6RS21SA5D5, Raytheon Company 710120-032, Danfoss Fluid Power Inc. 211-36710, ST-Semicon Inc: 5KV26.5A5-ZS, DLA Land and Maritime: DMS 82090B.

Made in USA   

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RapidConn - RC-205-070A - USB Extension cable.

USB-A with mate at opposite end.

Male to female.

Length: 11".

 

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Picker/Philips X-RAY - 350953 - Jumper Cable, 74868 - RG-11/U Coax Cable, UG-573A/U RF N Connector Male to Male. 24 inch length.

Highest Quality Heavy Duty Medical Grade Coax Cable, Used/Removed from Equipment. 

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PERKIN ELMER - HGA - Furnace Head for Heated Graphite Atomizer (HGA) Heated Graphite Atomizer (HGA) FURNACE HEAD, an accessory for Perkin-Elmer Atomic Absorption Spectrophotometers (AA). Basically, sample is placed in a graphite tube and a few hundred amps heats the tube white hot to break down the sample to atoms. Light from the AA passes through the tube and sample and the atoms are identified and measured. The tubing fittings are for cooling water and argon gas to prevent the tube from burning. Description: Chrome plated non-ferrous tool metal, brass? - Fit a One Inch Collette, 1/4-20 additional set up points - Fluid injection points - Round set up head with off-center holes, about 3/4" - Opposite round heads are Spring loaded towards each other with guide pins w/ nylon bushings - comes with roll of flex-tubing (maybe 25') for the fluid point - Adjustable handle points perpendicular to each other. Dimensions: About 5" x 5" x 4.5" high. Two Stainless donuts 2.5"OD, 0.87"W with Inside Diameter of 0.778". Black tube 1.1"OD x 1.25" Long with bronze or brass inserts, moveable with knob. Nine SS ports 3mm ID. Absolutely Beautiful piece of instrumentation & machining. Weighs Approximately 3.35 pounds. Factory New Learn More

NORTH HILLS - NH 12477 - Connector, Coax.

Wang to Dual Coax; One TNC and one BNC to Twisted Pair RJ12 Telephone Wire Connector Module.

This unit used only 4 pins of the RJ12 connector.

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MVME1604 double-high VMEmodule Single Board Computer - New in box.Going price appears to be $1800.00 Full spex & instructions may be found here: http://www.innovative-research.com/manuals/MVME1603-1604.pdf Learn More

IC, military. LSI Correlator. Marked 7365H001. Case: Quad 68-SMD, gold leads. Each individually packaged in an anti-static holder. Learn More

Laird Thermal System - MARLOW INDUSTRIES - CP2-31-10-L-1.

Ceramic Plate Series Thermoelectric Cooler - The CP2-127-10-L1 is a high-performance and highly reliable standard Thermoelectric Cooler. Assembled with Bismuth Telluride semiconductor material and thermally conductive Aluminum Oxide ceramics. 

Thermal electric cooler. Peltier junction's 3Amp 2.5V.

Dimensions: Approximately - 30mm sq x 5.3mm tall, (29.7mm x 29.7mm x 4.7mm).

MFG Part Number 40655-202.

New Old Stock. 

• Thermoelectric Coolers for Reagent Storage
• Thermoelectric Coolers for Handheld Cosmetic Lasers
• Cooling for Centrifuges
• Heads-Up Displays, Imaging Sensors
• Peltier Cooling for Machine Vision

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MICROMETRICS - 1N79 Microwave Diode, High Frequency.

A two electrode semiconductor device having an asymmetrical voltage - current characteristic.

Microwave S Band. f(test) test frequency = 3.0GHz (3,000 MHz)

Meter Rectifier 100V, 10A

Semiconductor Material: Silicon Crystal Diode

Enclosure: Glass and Metal 

Mounting Method: Press-Fit

Features: Hermetically Sealed DO-22 Gold Stud

Terminal Type: 1 Ferrule and 1 Flange.

Genuine Micrometrics - New Old Stock - Rare

Bird P/N: 2500-180.

NSN: 5961-00617-4983

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MICROMETRICS - Bird P/N 2500-180 Microwave Diode, High Frequency, 1N79.

A two electrode semiconductor device having an asymmetrical voltage - current characteristic.

Microwave S Band. f(test) test frequency = 3.0GHz (3,000 MHz)

Meter Rectifier 100V, 10A

Semiconductor Material: Silicon Crystal Diode

Enclosure: Glass and Metal 

Mounting Method: Press-Fit

Features: Hermetically Sealed DO-22 Gold Stud

Terminal Type: 1 Ferrule and 1 Flange.

Genuine Micrometrics - New Old Stock - Rare

Bird P/N: 2500-180.

NSN: 5961-00617-4983

 

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Register File (Static RAM) - 5 Port Reg File. Number of Words = 8, Bits Per Word = 8, t(acc) Max. (S) = 35n, tW Min (S) = 45n, P(D) Max.(W) Power Dissipation = 60m, Nom. Supp (V) = 5.0,Package = 64-PGA New ceramic gold Learn More

Board. Military assembly with Burndy connector M55302/7-03, NSN 5935-00-530-4650. Learn More

Board. Military assembly with Burndy connector M55302/7-03, NSN 5935-00-530-4650. Learn More

KRONE - T568A/B RJ-45 - 6645 1 800-01 - Connectors.

PRODUCT HIGHLIGHTS

• Used with patch panels, surface mount boxes, and wall plates
• Color coded krone type T568A / T568B wiring standards
• Cat6 mark labeled on keystone for easy identification
• Conforms to EIA/TIA Cat6 standards
• UL listed

RJ-45 Jack, Hi Band.

Cat 5&6 6645180001.

Housing: ABS+PC

RJ45 Jack Contact:  Gold Plating on Plug Contact Area

Case: 8-Pin, White.

Conforms to EIA/TIA Cat6 standards

Approvals: UL Listed

Factory New Old Stock - Sealed Krone Packaging from Factory

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TDK - Lambda - LAS1905 - Voltage Regulator, Linear.

Polarity: Positive.

Adjustment Range: 5V.

Maximum Current: 5Amp.

Package: TO-3 Steel.

New. Monolithic.

Pinball OM0148A

Alternate: XO-328 

Additional Data: http://www.datasheetspdf.com/pdf/905140/Semtech/LAS1905/1

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KVP Divider/Mammo/Diagnostic. (Noninvasive). Desk top style. Dimensions: 3.5 x 8.25 x 2.375". Note: Missing 3 rubber feet. Made in the USA. Condition unknown/Sold as is. Learn More

HUBBELL - BR62R/11 - Balum - Female BNC to RJ11 Modular Phone Jack. 

Baluns are a specific variety of transformers used to convert unbalanced signals into balanced ones.

BNC Female to 4 Pin Female Modular Phone Jack.

Note: Straight to 4 Conductor Telephone Jack.

For Coax Cable.

New Old Stock

Applications: Designed for network impedance matching. Use your existing telephone cable to transmit video signals up to 660 ft. Save time and money utilizing unused cable already installed in your home or place of business.

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Servo mechanism, azimuth type 4025-01. Dimensions: 2.75" D x 3' high. Silver can with cable and multipin military male connector. New. Learn More