Exotic

8mm Cassette tapes Data cartridge Learn More

MYSTERY TRANSISTORS ?? TO-3 HEAVY STEEL Learn More

RADIO ALTITUDE 0~400-Feet ^ mechanical wheel on back ^ 0~4,000-FeetCockpit Meter is 3.12"diameter x 2.6"Deep, 3.8"OAL with 1.8"brass screw.Mounting holes 2.5" apart. A real piece of HisStory . . . Learn More

National Semiconductor - A5120 - 12-Digit Bubble Display 

First Generation LED Array 12-Digit 7-Segment Bubble Display

Pretty little gold plated circuit board with 22 thru-plated holes - you can see the microscopic wires going to the silicon under the bubbles.

Lens/Magnification: clear Bubble 1.5X

Intensity: 0.45 mcd @ 7mA

Dimensions: 60.8mm X 18.3mm

Rare 12 Digit LED Bubble Display 

Collector's Item Retro Display - 1970s Vintage

Genuine National Semiconductor - New Old Stock - Rare - Mint

Reportedly Used in privileg 884 ESR-E Manufactured by Rockwell

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SENSOR 15"-Long x 0.75"Diameter Stainless Steel - Perforated for Air Flow ?with 6-pin (M) Mil connector Learn More

TO-39/6 CUT 2.8mm LEADS PULLS Learn More

IC, optoisolator. Package: 6 Dip. Learn More

Mystery. Package: TO-3 steel. Learn More

NEW TO-220 Learn More

APPOLLO PARTS - NEW for airline computers? CUST. # 009011-001 (64 pin IC ) Learn More

Don't know what it is Possible a voltage regulator or a transistorYou pick which one it is TO-3 STEEL Learn More

POWERTHERM MODULE Learn More

MYSTERY TRANSISTORS TO-5 LONG LEADS Learn More

DOW CORNING - POW SLS SEH-39 B6623297DH – Semiconductor Silicon Wafer. Silicon Wafer Dimensions: 1.002” – 1.006" Diameter x 0.510” – 0.513” Thick. Wafers are formed of highly pure (99.9999999% purity) nearly defect-free single crystal material. Unpolished Perfectly Pure Silicon except for the doped impurities. Type: POW (P Type) Breakdown of what a P-Type (Positive) wafer means: • Dopant (Impurity): P-type silicon is created by adding trivalent elements (Group III on the periodic table), such as Boron, to pure silicon. • Charge Carrier: These dopants create an excess of positive charge carriers, known as "holes". • "P" Stands for Positive: The "P" refers to the positive charge of the holes. • Applications: P-type wafers are commonly used in solar cells, CMOS technology, and as a base substrate for integrated circuits (ICs) and transistors. • Distinction: P-type wafers are usually distinguished from N-type (Negative/Phosphorus-doped) wafers, which use electrons as primary charge carriers. Key Characteristics of P-type Wafers: • Lower Conductivity: Generally lower conductivity compared to N-type. • Good Performance: Ideal for hole transport in solar cell applications. • Compatible with CMOS: Used extensively in standard semiconductor fabrication. Theoretically millions of P/N junctions could be made from this man-made crystal. In applications wafers are thin slices Value: The value of a (25.4mm) 1.0” Diameter x (12.7mm) 0.5” thick silicon wafer typically ranges between $50 - $250 depending on its grade and surface finish. Because this thickness is exceptionally high for a standard "wafer" (which are usually less than 1mm (Thick), this item is often categorized as a silicon window, mirror blank, or optical substrate. A 25.4mm (1-inch) diameter, 12.7mm thick silicon wafer is a thick, small-diameter substrate primarily used for research and development, specialty optical components, or as a structural component rather than for standard microchip fabrication. Due to its extreme thickness relative to standard wafers (typically <1mm), it is ideal for precision polishing, infrared (IR) optics, high-load testing, and as a stable substrate in materials science research. Applications: Solar Cells, CMOS Technology, Science Project or Show + Tell. New Old Stock Made in Japan Learn More

AO Smith - Joslyn Clark Control Division - 128-683 Rheostat. Vitrohm Plate Type.

Vitrohm pressed steel rheostats furnish a simple, accurate and economical method of field control. They are universally applied for adjusting generator, alternator and exciter field currents to obtain variations in output voltage and for field control of adjustable speed D.C. and synchronous motors. Other typical applications include heater, furnace, battery charging and other controls.

Rheostat Potentiometer Speed Control

Spring Loaded Wiper with Thick Silver Face

Dual 1.25 Ohms 36.8Amp 600V. 128-683.

ED No 90004LH.

Dimensions: 14-3/4" Diameter x 8-1/2" High. 

Approximately Weight: 26 lbs.

Genuine Vintage Joslyn Clark - New Old Stock

Read more on https://www.specialtyproducttechnologies.com/joslyn-clark/products/other-components/rheostats

Proudly Made in USA

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New 24-dip IC's Marked 864353-1 HC 4108 Double marked HC 4108 and CDI/F1544 Learn More

Enclosure. Road case / shipping container made for Gould instruments. Learn More

CENTURY - Art PC Board Two 2" x 1.75" pretty green pc board with trees or RR ties connecting the 19/20 bright copper rectangles.

Has two mounting holes, good for hanging like a pendant.

YOU Can make use of these, we trust your creativity.

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CDC - 15162607 M407

M407 NEW CERDIP-16 "15162607 D M407"

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Front Panel: Wide analog Meter 1.0 - 0 - 1.0 Degrees F. - Baseline Temperature Knobpot adjustment - Scale Switch, 6-position - Vol/FB Pot - Power / Function Switch: B1 B2 ChA ChB A-B - 1/4" Phone kacks for Ch-A and Ch-B Inputs, Audio - Pulse toggle switch - real nice wooden case - Rear panel: 3 RCA phono jacks: Absolute Temp - Relative Temp - LOGIC -p DIN Jack to MA-50/51. Requires two (2) NEDA 1603, equivalent to Eveready No. 276. 9V batteries (not included). No temperature probes are supplied with the instrument. Learn More

IC. Unknown function. Case: 18 Cdip. Note: Military stamped 23911662. New. Learn More

Aerodyne Controls - 791-5-000 - Switch, Accelerator/Inertia.

Circor Aerospace

2G. Sensitive.

Enclosed, 4 pin (3.3mm leads).

Dimensions: 41mm long x 26.1mm wide x 26.3mm high.

Note: Each with an S/N.

Navord No. 10001-2507624.

Contract No. N00024-84-C-6064.

Aerospace Crash Sensore

Additional Information https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8071262/

Used/Removed from Equipment.

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Electrically conductive floor runner/mat. ESD. Size: 2 foot x 50 foot and 1/8" thick. Learn More

DUPONT - TUT10BG3 - Tedlar. Polyvinyl Fluoride Film (PVF).

DuPont™ Tedlar® protective film helps extend the look and life of your design, even in the most extreme environments. From severe weather to harsh chemicals, Tedlar® protective film provides long-term durability and performance. Tedlar® protective film can easily be applied to a range of surfaces, providing the flexibility to design your way, and the surface performance to keep it that way.

Features: Long Term Protection, Fatigue Resistant, Good Elongation, Good Printability, Good Color Stability, Photolytic Degradation Resistant, Low Toxicity, Good Processability, Alkali Resistant, Excellent Long Term Heat Aging Properties, Crack Resistant, Solvent Resistant, Good Abrasion Resistance, Excellent Dielectric Properties, Acid Resistant, Excellent Formability, Cleanable, Durable, Glossy Surface Aspects, Bacteria Resistant, Heat Sealable, Low VOC, Excellent UV Stability, Flexible, High Dielectric Strength, Flame Resistant, Good Surface Finish, Corrosion Resistant, Good Weather Stability, Mildew Resistant, Excellent Salt Spray Resistance, High Temperature Resistance, High Gas Permeability, Sound Transmitting, Microbe Resistant, Chemical Resistant, Good Stain Resistance

UV Screening Transparent Film.

Roll Length: 4900 Feet x 1" (25.4mm) Thick.

Applications: Major uses of Tedlar are backing materials for photovoltaic panels, with a life expectancy of over 20 years. Another major market for clear Tedlar films is on thermoformed panels used on the inside of commercial aircraft. The Tedlar film provides graffiti resistance and makes the surfaces very easy to clean.

New Old Stock - Highly Discounted

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