DUMONT K1192P1 Fairchild Miniature Crt Tube 1.5

( Brand: Dumont ), ( Manufacturer Part Number: K1192P1 ), ( Part Type: Tube )

Review DUMONT Rare Fairchild 1.5 Inch Miniature Crt Tube

The **Dumont K1192P1 Fairchild 1.5-inch Miniature Cathode Ray Tube (CRT)** is a rare and highly sought-after artifact from the golden age of electronics, embodying the precision engineering and innovative design that defined early television and oscilloscope technology. Manufactured by the Fairchild Camera and Instrument Corporation an industry pioneer in vacuum tube technology this compact CRT exemplifies the compact yet powerful miniature tubes that were critical in early radar systems, military applications, and laboratory instrumentation. With a diameter of just 1.5 inches, the K1192P1 is a testament to the ingenuity of engineers who sought to balance performance with portability, making it ideal for integration into small-scale oscilloscopes, test equipment, or early television receivers where space was at a premium. Its glass envelope is meticulously crafted, featuring a high-quality phosphor coating designed to produce bright, stable visual output with minimal afterglow, ensuring clear and reliable imaging for diagnostic or display purposes. The internal construction includes a carefully balanced electron gun assembly, precision-focused cathode and control grids, and a deflected beam system that allows for accurate deflection patterns, making it suitable for both analog waveform visualization and static image projection. The tube s compact size does not compromise its functionality; instead, it highlights the advancements in glassblowing and vacuum technology of the era, where manufacturers like Dumont and Fairchild pushed the boundaries of what could be achieved in a small footprint. Historically, this model was favored for its reliability and consistency, often used in military and aerospace applications where dependability under varying conditions was paramount. Today, the K1192P1 is a prized collector s item among vintage electronics enthusiasts, historians, and hobbyists, offering a tangible connection to the formative years of electronic display technology. Its inclusion in a restoration or a functional setup serves as both a nod to the past and a functional piece of history, bridging the gap between analog innovation and modern digital systems.

### Pros and Cons of Buying a Dumont K1192P1 (Fairchild 1.5" Miniature CRT Tube)

1. **Compact Size and Portability** The 1.5" miniature CRT tube is significantly smaller than standard CRTs, making it ideal for retro gaming, vintage electronics restoration, or DIY projects where space is limited. Its lightweight design allows for easier integration into portable or custom-built devices.

2. **High-Quality Image for Its Size** Despite its small dimensions, the K1192P1 offers decent resolution and brightness for its era, making it suitable for applications like oscilloscopes, early computer monitors, or small-scale displays. It retains a nostalgic, analog aesthetic that enthusiasts appreciate.

3. **Compatibility with Vintage Systems** This tube was used in early Fairchild and other retro computers (e.g., the **Fairchild Channel F**, **Micro-Nova**, or **S-100 bus systems**). Restoring or replicating these systems often requires original or compatible CRTs, and the K1192P1 fits this niche perfectly.

4. **Collectible and Enthusiast Appeal** For hobbyists, historians, and collectors of vintage technology, owning a functional (or restored) K1192P1 adds value to a retro computing or electronics collection. Its rarity and historical significance make it a desirable piece for enthusiasts.

5. **Potential for DIY Modifications** Skilled electronics tinkerers can experiment with repurposing or modifying the tube for custom projects, such as building a minimalist CRT monitor, a retro gaming console, or even an artistic installation.

6. **Lower Power Consumption Compared to Larger CRTs** Miniature CRTs generally consume less power than their larger counterparts, which can be advantageous for battery-powered or low-voltage applications.

7. **Unique Aesthetic for Modern Projects** Incorporating a vintage CRT into modern builds (e.g., a retro arcade cabinet, a custom computer case, or a homebrew console) can create a visually striking contrast between old and new technology.

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1. **Limited Availability and High Cost** The K1192P1 is an older, specialized component, and finding a functional or working example can be difficult and expensive. Prices often exceed $100 $300 depending on condition, and replacements may not be readily available.

2. **Fragility and Sensitivity** CRTs, even miniature ones, are delicate. They contain high-voltage components, glass envelopes, and internal wiring that can be damaged by mishandling, power surges, or improper storage. Repairing or replacing a damaged K1192P1 is non-trivial and may require specialized skills or parts.

3. **Power Supply Requirements** The tube requires a specific high-voltage power supply (typically around **10 15 kV** for the cathode and **accelerating anode**), which must be carefully regulated to avoid damaging the tube. Building or sourcing a compatible power supply adds complexity to the project.

4. **Limited Lifespan and Wear** Even when properly maintained, CRTs have a finite lifespan due to internal degradation (e.g., filament burnout, phosphor fading, or vacuum leaks). The K1192P1, like all CRTs, will eventually fail, and replacements may not be available in the future.

5. **Compatibility Issues with Modern Systems** While the tube itself may work with vintage hardware, integrating it into a modern system (e.g., connecting to a USB or PCIe-based computer) requires additional circuitry (e.g., a character generator or video interface). This can be costly and time-consuming to implement.

6. **Maintenance and Restoration Challenges** Restoring a K1192P1 often involves cleaning the glass, replacing the filament, or recalibrating the focus and deflection coils. These tasks require patience, precision, and sometimes specialized tools. Without experience, the risk of further damage is high.

7. **Environmental and Safety Concerns** CRTs contain leaded glass and other hazardous materials. Proper disposal or recycling is legally required in many regions. Additionally, the high voltages involved pose a risk of electric shock if mishandled.

8. **Performance Limitations** Compared to modern displays, the K1192P1 offers very low resolution, limited color options (often monochrome or limited RGB), and poor refresh rates. It is not suitable for high-end applications but is only practical for niche uses.

9. **No Active Market for Repairs or Upgrades** Unlike modern electronics, there is no ecosystem for repairing or upgrading CRTs. If the tube fails, the owner is often left with a non-functional component with no easy path to replacement or repair.

10. **Ethical and Sustainability Concerns** Purchasing a CRT for a new project may contribute to electronic waste if the tube is not properly recycled. Some enthusiasts argue that preserving original vintage hardware is more sustainable than creating new projects with obsolete components.

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The Dumont K1192P1 (Fairchild 1.5" CRT) is a fascinating and historically significant component with strong appeal for retro computing enthusiasts, collectors, and DIY electronics hobbyists. Its compact size, nostalgic charm, and compatibility with early microcomputers make it a valuable addition to certain projects. However, its high cost, fragility, limited availability, and the technical challenges of integration and maintenance present significant drawbacks.

- Restoring or replicating early Fairchild or S-100 era computers.

- Building custom retro gaming consoles or homebrew computers.

- Creating artistic or educational projects that highlight analog computing.

- Collecting as a piece of computing history.

For casual hobbyists, modern gamers, or those seeking practical displays, the K1192P1 is likely overkill due to its limitations and complexity. Modern alternatives (e.g., OLED, LCD, or even digital emulators) offer far greater convenience and performance.

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- You are a dedicated retro computing enthusiast with experience in electronics and CRT repair.

- You have a specific project in mind (e.g., restoring a Fairchild Channel F) and are willing to invest time and money in sourcing, testing, and maintaining the tube.

- You are comfortable building or sourcing a high-voltage power supply and troubleshooting compatibility issues.

- You value the historical and aesthetic appeal of vintage technology over modern convenience.

- You are a beginner in electronics or CRT repair and lack the skills to handle high-voltage components safely.

- You are looking for a practical, high-performance display for modern use.

- You cannot justify the cost or effort required to integrate the tube into your project.

- You prioritize sustainability and ease of disposal over the novelty of using a vintage component.

- If your goal is to emulate vintage computing, consider using **modern emulators** (e.g., MAME, DOSBox) on a Raspberry Pi or PC with a modern monitor.

- For a physical retro display, explore **smaller, more accessible CRTs** (e.g., 3" or 5" tubes used in early arcade machines) or **modern retro-style displays** (e.g., CRT monitors with retro gaming modes).

- If you need a compact display for a DIY project, evaluate **OLED or LCD panels** (e.g., 2.4" or 3.5" screens) for better reliability and ease of use.

Ultimately, the K1192P1 is a **specialized tool** best reserved for those with a strong commitment to preserving or recreating vintage technology. For most users, modern alternatives will provide a better balance of performance, cost, and convenience.

Details:

RARE Fairchild Dumont K1192P1 1.5 Miniature CRT Tube, not tested its in good shape.

part #: k1192p1 prices

• $45.00-$75.00

specifications tubesocketvintagego:

• brand: Dumont
• mpn: K1192p1
• part type: Tube

seller tubesocketvintagego:

• # reviews: 6903
• rating: 99.6%
• city: Barre, Vermont

returns tubesocketvintagego:

• time: 14 Days
• paid by: Buyer
• policy: Returns Accepted
• method: Money back

payments tubesocketvintagego:

• wallet: Paypal
• credit card: Diners-club
• other

offer tubesocketvintagego:

• options: Ship-to-home
• quantity: 1
• started: February 17, 2026
• sold: 0
• availability: In Stock
• best offers: True

shipping tubesocketvintagego:

• service: UPS Ground
• type: Calculated
• cost: $9.56
• carrier: UPS
• transit: 3-8 Days
• class: Standard

general tubesocketvintagego:

• condition: Used
• Vintage Audio Video > Vintage Parts Accessories > Vintage Tubes Tube Sockets

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