DUMONT 5JP2 Crt Tube

( Brand: Dumont ), ( Manufacturer Part Number: 5JP2 ), ( Part Type: Tube ), ( Country Of Origin: United States )

Review DUMONT Crt Inch Tube Good Shape

The Dumont 5JP2 is a rare and highly sought-after cathode-ray tube (CRT) that embodies the golden age of television engineering, offering a blend of vintage charm and technical precision that remains unmatched in modern displays. Manufactured by Dumont Laboratories, a pioneering force in early television technology, this 19-inch CRT tube was designed for high-fidelity image reproduction, making it a staple in mid-20th-century television sets and early computer monitors. The 5JP2 features a classic **shadow-mask design**, a hallmark of its era, which ensures vibrant color separation and sharp image clarity by projecting three distinct electron beams one for red, one for green, and one for blue onto a phosphorescent screen. The tube s **19-inch diagonal display** delivers a generous viewing area, ideal for both home entertainment and professional applications, while its **high-resolution phosphor coating** (often a blend of P22 or P4 phosphor types) enhances contrast and color saturation, reducing image bleed and ghosting that plagued earlier CRT models.

What sets the Dumont 5JP2 apart is its **robust construction and enduring reliability**, built to withstand decades of use with minimal degradation. The tube s **glass envelope** is crafted from high-quality borosilicate material, resistant to thermal stress and mechanical damage, while its **magnetic focusing and deflection systems** ensure precise beam control, resulting in a smooth, distortion-free image even at high scan rates. The 5JP2 s **pin-compatible design** (typically featuring a 10-pin or 12-pin base) allows for easy integration into modern or restored circuitry, making it a versatile choice for retro computing enthusiasts, vintage television restorers, and DIY electronics hobbyists. Whether used in a classic Dumont television, a restored Apple IIe, or a custom-built CRT monitor, this tube exudes a nostalgic yet functional aesthetic that bridges the gap between analog and digital eras.

Beyond its technical specifications, the Dumont 5JP2 holds significant historical value as a relic of an era when television technology was still evolving. Dumont Laboratories, founded by **Dr. Allen B. Dumont**, played a crucial role in the development of early television standards, and the 5JP2 reflects the company s commitment to innovation during the 1950s and 1960s. Its **vintage appearance**, with its slightly rounded edges and classic CRT silhouette, adds a touch of retro elegance to any setup, while its **superior image quality** free from the pixelation and color inaccuracies of modern LCDs makes it a prized component for those seeking an authentic analog experience. For collectors, restorers, and technicians, the 5JP2 is not just a functional CRT but a tangible piece of technological history, offering a glimpse into the craftsmanship and ingenuity of an earlier age.

### Dumont 5JP2 CRT Tube: Pros and Cons

The Dumont 5JP2 is a classic 23-inch cathode-ray tube (CRT) designed for television use, particularly in the 1960s and 1970s. While it remains a sought-after component among vintage electronics enthusiasts, collectors, and DIY restorers, it has distinct advantages and limitations.

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### **Pros of the Dumont 5JP2 CRT Tube**

1. **High-Quality Image**

The 5JP2 was known for its sharp, clear picture with excellent contrast and color fidelity for its time. It used a shadow-mask design, which provided better color separation than earlier beam-penetration tubes, resulting in vibrant and accurate colors.

2. **Durability and Longevity**

CRT tubes, including the 5JP2, were built to last decades with proper care. Many original 5JP2 tubes from the 1960s 70s are still functional today, especially if stored in a stable environment. When properly maintained, they can outlast modern LCD/OLED displays in terms of raw longevity.

3. **Vintage Aesthetic and Collectibility**

The 5JP2 is highly prized by collectors for its historical significance and association with early color television technology. Owning or restoring a set with this tube can be appealing to enthusiasts of retro electronics.

4. **Repairability and Modifiability**

Unlike modern flat-panel displays, CRTs are relatively easy to repair and modify. The 5JP2 s design allows for DIY repairs, such as replacing the shadow mask, fixing burn-in (though less common than in older tubes), or upgrading power supplies. The tube itself can often be salvaged from old televisions.

5. **Superior Viewing Experience for Certain Uses**

For applications where motion clarity, deep blacks, and wide viewing angles are critical (e.g., gaming, retro computing, or analog video playback), a well-maintained 5JP2 can outperform modern displays in terms of smooth motion handling and reduced input lag.

6. **Lower Power Consumption (Compared to Modern TVs)**

While not energy-efficient by today s standards, a CRT like the 5JP2 consumes significantly less power than a modern 55-inch LED TV. This can be advantageous for off-grid or portable setups.

7. **Compatibility with Analog and Composite Signals**

The 5JP2 handles analog signals (composite, S-Video, RF) exceptionally well, making it ideal for retro gaming consoles, VCRs, and early digital formats like VHS or early DVD players.

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### **Cons of the Dumont 5JP2 CRT Tube**

1. **Bulky and Heavy**

The 5JP2 is large and heavy (approximately 50 60 lbs for the tube alone), making it impractical for portable or space-constrained setups. Moving or transporting it requires careful handling to avoid damage.

2. **High Voltage and Safety Risks**

CRTs operate at high voltages (typically 20 30 kV), posing serious electrical hazards. Improper handling or repair can lead to electric shock, burns, or even fatal accidents. Specialized tools and knowledge are required for safe work.

3. **Limited Lifespan with Heavy Use**

While CRTs can last decades with minimal use, heavy daily use (e.g., as a primary TV) can accelerate wear, particularly in the electron gun or deflection yokes. The tube may eventually fail due to internal degradation or damage from power surges.

4. **Maintenance Requirements**

- **Phosphor burn-in** (though less common in the 5JP2 than in older tubes, prolonged static images can still cause fading).

- **Geissler discharges** (arcing inside the tube, often due to dust or moisture).

- **Deflection yoke misalignment** (requiring recalibration over time).

- **Power supply failures** (common in older sets; replacement parts may be scarce).

5. **Limited Brightness and Viewing Angle**

The 5JP2, like most CRTs, suffers from **viewing angle issues** colors and contrast degrade significantly when viewed from extreme angles. It also lacks the high brightness of modern LED/LCD screens, making it less suitable for well-lit rooms.

6. **Mercury Content and Environmental Concerns**

CRTs contain mercury (in the backlight or other components) and lead (in the glass). Proper disposal or recycling is required to avoid environmental harm. This can be a drawback for those concerned about sustainability.

7. **Limited Availability of Parts and Expertise**

While the 5JP2 itself may still be available, finding compatible power supplies, chassis parts, or skilled technicians for repairs can be challenging. Many original components may no longer be manufactured.

8. **No Smart Features or Modern Connectivity**

The 5JP2 is purely analog and lacks HDMI, USB, or internet connectivity. It cannot display modern formats like 4K, HDR, or streaming services. For contemporary use, it requires additional hardware (e.g., a capture card for gaming or a DVD player for movies).

9. **Heat Generation**

CRTs generate significant heat during operation, which can be a concern in small rooms or for prolonged use. Proper ventilation is necessary to prevent overheating.

10. **Declining Practicality**

For most everyday uses (e.g., watching movies, browsing the web, or working), a modern flat-panel display offers superior convenience, energy efficiency, and features. The 5JP2 is primarily valuable for niche applications like retro computing, analog gaming, or as a collector s item.

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### **Conclusion**

The Dumont 5JP2 CRT tube is a remarkable piece of technology with a loyal following among enthusiasts. Its strengths lie in its **image quality, durability, repairability, and historical significance**, making it ideal for those who appreciate analog electronics, retro computing, or vintage television. However, its **bulkiness, safety risks, maintenance demands, and lack of modern features** limit its practicality for contemporary use.

- **Restoration of a vintage television** (e.g., a Dumont 19DT, Zenith 2000, or other classic sets).

- **DIY CRT projects** (e.g., building a custom monitor or gaming console).

- **Collecting or preserving analog technology**.

- **Specialized uses** (e.g., analog video recording, retro gaming, or educational purposes).

For these applications, the 5JP2 remains a fantastic choice. However, if you seek a **modern, low-maintenance, and versatile display**, a contemporary flat-panel TV or monitor is far more practical.

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### **Recommendation**

- You are restoring or repairing a vintage television set.

- You are interested in retro computing, analog gaming, or DIY electronics projects.

- You value the aesthetic and technical heritage of CRT technology.

- You are prepared to invest time in maintenance, safety precautions, and potential repairs.

- You need a display for everyday use (movies, work, browsing).

- You lack experience with high-voltage electronics or repair work.

- You prioritize portability, energy efficiency, or modern features like HDMI or smart capabilities.

- You are not willing to deal with the challenges of storage, handling, and disposal.

For most casual users, the 5JP2 is a **specialty item** rather than a practical everyday purchase. However, for those passionate about analog technology, it remains an exciting and rewarding component to own or work with. Always ensure you purchase from a reputable seller (e.g., eBay with verified feedback, specialized CRT forums, or vintage electronics shops) and inspect the tube for signs of damage (e.g., cracks, arcing, or discoloration) before buying.

Details:

Dumont 5JP2 CRT 5 inch tube good shape, shape not tested, vacuum and filament are.

part #: 5jp2 prices

• $74.99-$75.00

specifications tubesocketvintagego:

• brand: Dumont
• mpn: 5jp2
• part type: Tube
• country of origin: United States

returns tubesocketvintagego:

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

payments tubesocketvintagego:

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

shipping tubesocketvintagego:

• cost: $22.20
• service: UPS Ground
• carrier: UPS
• class: Standard
• transit: 4-8 Days
• type: Calculated

offer tubesocketvintagego:

• best offers: True
• started: February 26, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock

general tubesocketvintagego:

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

seller tubesocketvintagego:

• city: Barre, Vermont
• # reviews: 6949
• rating: 99.6%

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