RADIOSHACK 275-040 Archer Experimenters Mercury Bulb Switch Cat Nos

( Brand: Radioshack ), ( Manufacturer Part Number: 275-040 ), ( Part Type: Bulb Switch )

Review RADIOSHACK Archer Experimenters Mercury Bulb Switch Nos Cat

The Radioshack 275-040 Archer Experimenter Mercury Switch is a must-have component for any electronics enthusiast or hobbyist working on vintage or antique electrical projects. This mercury switch, also known as a contactless mercury switch or a mercury tilt switch, offers a unique and reliable switching mechanism that is capable of sensing the tilt or orientation of an object.

The switch comprises a hollow glass bulb filled with mercury. When the bulb is in an upright position, the mercury forms a connection between two metal contacts inside, thus completing the electrical circuit. However, when the bulb is tipped or tilted to an angle, the mercury shifts, breaking the connection and opening the circuit.

This Radioshack 275-040 Mercury Switch is commonly used in various applications, such as switch Georges Farnault tube radio sets, tilt switch doors, and mercury level switches. Its compact size, which measures just under 2 inches in length, makes it suitable for space-constrained projects, while its robust and reliable construction ensures consistent performance.

The switch is designed with a clear glass bulb that allows users to observe the mercury inside. It also comes with a stainless steel base and is sealed with a protective rubber gasket, minimizing the possibility of mercury leakage. This switch is a NO (Normally Open) type, meaning it opens the circuit when triggered and closes when in its normal position.

When voltage is applied to the switch terminals, the mercury inside the bulb forms a connection, allowing current to pass through. This mercury switch can handle a maximum voltage of 50 volts DC and a maximum current of 2 amperes. For the best results, it is recommended to use a voltage lower than 25 volts and to have a resistor in series with the switch to protect it from voltages that might cause mercury pollution.

This Radioshack 275-040 Archer Experimenter Mercury Switch is an essential tool in the treasure trove of any electronics or hobbyist enthusiast, appealing to those passionate about vintage technology and experimentation. it's comes in a white cardboard box with the part number and a brief description of the component printed on it. Whether you're restoring an antique radio or designing a custom tilt sensor, this mercury switch provides a functional, reliable, and classic solution to your switching needs.

Archer Experimenters Mercury Switch (Radioshack 275-040): A Comprehensive Analysis

The Radioshack 275-040 Archer Experimenters Mercury Contact Switch is a classic component often used in various experimental and hobbyist electronic projects. Though mercury switches have been replaced by modern solid-state alternatives in many applications, there are reasons why hobbyists might still consider purchasing this vintage piece:

1. Historic Value: Mercury switches like this one have historical significance and are part of the rich history of electronics. They can be valuable additions to diverse collections.

2. Unique Operating Principle: Understanding how mercury switches function is essential for those interested in learning about early electronics technology.

3. Vintage Projects: Some older electronic projects might require a mercury switch for proper functionality. Collectors and tinkerers may need a Radioshack 275-040 Archer Experimenters Mercury Switch for keeping their vintage projects authentic.

1. Cost: Mercury switches are pricier than solid-state alternatives due to their use of mercury and the potential hazards surrounding their disposal.

2. Hazardous Material: Mercury is a hazardous material that poses environmental risks if not handled carefully. Disposal requires specialized procedures and facilities to ensure the safe disposal of the mercury contained in the switch.

3. Longevity: Mercury switches consist of fragile components, such as a glass bulb that can break and spill mercury. Overall, they have a relatively short operational lifespan compared to modern, reliable alternatives.

4. Availability: It may be difficult to find Radioshack 275-040 Archer Experimenters Mercury Switches in stores, as they have mostly been replaced by solid-state switches.

The Radioshack 275-040 Archer Experimenters Mercury Switch is an intriguing component for electronics enthusiasts with an interest in vintage technology and a sustainable source of knowledge about early electronic switches. While its pros include the historical value, unique operating principle, and utility in vintage projects, the cons include its cost, the hazardous mercury material, short longevity, and limited availability.

If you're an electronics hobbyist or collector with a keen interest in vintage technology, the Radioshack 275-040 Archer Experimenters Mercury Switch is an attractive addition to your collection. Proceed with caution when buying, as its availability may be limited. Making sure you safely store, handle, dispose, and replace the switch with modern solid-state counterparts can mitigate the potential risks and inconvenience.

Details:

This is a Archer Experimenters Mercury Bulb Switch RadioShack Cat No. It has never been opened or used. Items are described to the very best of my ability and sold As Is Where is. No crooks, please.

I bought this new many years ago and recently found it in a box my garage. Legit buyers only.

part #: 275040 prices

• $9.49-$12.00

specifications vintaelec:

• brand: Radioshack
• mpn: 275-040
• part type: Bulb Switch

general vintaelec:

• Consumer Electronics > Vintage Electronics > Other Vintage Electronics
• condition: New

seller vintaelec:

• # reviews: 1172
• rating: 100.0%
• city: Morgantown, West Virginia

payments vintaelec:

• other
• credit card: Discover
• wallet: Google-pay

returns vintaelec:

• policy: No Returns

shipping vintaelec:

• cost: $4.25
• class: Standard
• type: Calculated
• service: USPS Ground Advantage
• transit: 4-10 Days
• carrier: USPS

offer vintaelec:

• quantity: 1
• best offers: True
• availability: In Stock
• started: February 8, 2025
• options: Ship-to-home
• sold: 0

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