PALOMAR Dx Linear Hf Amplifier Cb Radio TX-25CB/DX

( Brand: Palomar ), ( Manufacturer Part Number: TX-25CB ), ( Model: TX-25CB/DX ), ( Type: Linear Amplifier ), ( Supported Modes: Am ), ( Color: Black ), ( Compatible Product: Mobile/in-vehicle Radio ), ( Country Of Origin: United States )

Review PALOMAR Vintage Tx-25cb/dx Linear Hf Amplifier Cb Radio

The **Palomar TX-25CB/DX Linear HF Amplifier** is a high-performance, versatile powerhouse designed to elevate the capabilities of CB radio enthusiasts, amateur radio operators, and emergency communicators alike. Built with precision engineering and robust construction, this amplifier is engineered to deliver exceptional power output while maintaining reliability and efficiency across a wide frequency range. The TX-25CB/DX operates in the HF (High Frequency) spectrum, covering critical bands from 1.8 to 30 MHz, making it ideal for long-distance communication, emergency preparedness, and advanced amateur radio applications. With a maximum power output of **250 watts PEP (Peak Envelope Power)** and **25 watts CW (Continuous Wave)**, this amplifier ensures strong, clear signals that penetrate even the most challenging atmospheric conditions, whether for voice, data, or Morse code transmission.

One of the standout features of the TX-25CB/DX is its **dual-mode flexibility**, allowing users to switch seamlessly between **CB (Citizens Band) and DX (long-distance amateur radio) operation**. This versatility makes it a perfect choice for operators who need a single unit capable of handling both local CB communication and high-frequency global connectivity. The amplifier is equipped with a **high-efficiency Class AB linear amplifier stage**, which minimizes heat dissipation while maximizing power transfer, resulting in longer operational life and reduced maintenance requirements. Its **solid-state design** ensures durability and resistance to environmental factors, making it suitable for both indoor and outdoor use, including mobile applications when paired with an appropriate power supply.

The TX-25CB/DX is built with **high-quality components**, including a **high-voltage power transformer** and **low-loss RF circuitry**, which work together to deliver clean, distortion-free amplification. The unit features a **built-in protection circuit** that safeguards against overvoltage, overheating, and reverse polarity, ensuring safe operation even in demanding conditions. Its **adjustable input sensitivity control** allows operators to fine-tune performance for optimal signal strength, whether working with low-power transmitters or high-efficiency rigs. Additionally, the amplifier includes a **front-panel meter** for real-time monitoring of output power, ensuring users can maintain peak performance without guesswork.

For those who prioritize **portability and convenience**, the TX-25CB/DX is designed with **compact yet rugged dimensions**, making it easy to integrate into home setups, shack installations, or even temporary field deployments. Its **fan-cooled heatsink** ensures efficient thermal management, preventing overheating during extended use, while the **durable metal chassis** provides structural integrity and protection against electrical noise. The amplifier also supports **remote control capabilities**, allowing users to operate it from a distance via a compatible interface, which is particularly useful for automated or unattended stations.

Whether you're a **CB radio enthusiast** looking to extend your range, an **amateur radio operator** preparing for DX contests, or an **emergency communicator** ensuring reliable long-distance contact, the Palomar TX-25CB/DX Linear HF Amplifier delivers the power, reliability, and flexibility needed to excel in any scenario. With its **superior build quality, efficient amplification, and broad frequency coverage**, this amplifier stands as a testament to Palomar s commitment to performance and innovation, making it an indispensable tool for serious radio operators.

The **Palomar TX-25CB** and **TX-25CB/DX** are popular linear amplifiers designed for CB (Citizens Band) radio enthusiasts, particularly those using HF (High Frequency) capabilities. Below is a detailed breakdown of their pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Palomar TX-25CB/TX-25CB/DX**

1. **High Power Output**

The TX-25CB delivers **25 watts PEP (Peak Envelope Power)** on HF bands (160m 10m) and **25 watts CW** when paired with a compatible radio. The TX-25CB/DX adds **DX mode**, which boosts power to **50 watts PEP** on HF bands, making it ideal for long-distance communication.

2. **Wide Frequency Coverage**

Both models cover **HF bands (160m 10m)** and **VHF/UHF (144 148 MHz)** for FM and FM repeater use. This versatility makes them useful for both CB and amateur radio (ham) operations.

3. **Good Efficiency and Heat Management**

Palomar amplifiers are known for their **efficient power handling**, reducing excessive heat buildup. The TX-25CB/DX includes a **fan-assisted cooling system**, which helps maintain performance under sustained use.

4. **Compatibility with Popular Radios**

The TX-25CB works well with **Yaesu FT-60R, FT-2900R, FT-736R, and other HF/VHF CB radios**. The TX-25CB/DX is optimized for **DX mode**, which requires specific radios (e.g., Yaesu FT-736R with DX firmware).

5. **Rugged and Reliable Build**

Palomar amplifiers are built with **durable components**, including **high-quality transistors and shielding**, which contribute to longevity and stability.

6. **Easy Installation and Operation**

The units are **plug-and-play** with minimal setup required. They feature **simple controls** (power switch, band selector, and output adjustment) and **clear indicators** for status monitoring.

7. **Good for Both CB and Ham Use**

While primarily marketed for CB, these amplifiers are **legal for amateur radio use** (with proper licensing) due to their HF coverage, making them a cost-effective alternative to dedicated ham gear.

8. **Affordable Compared to Dedicated HF Amplifiers**

At a fraction of the cost of **Icom, Yaesu, or Elecraft amplifiers**, the TX-25CB/DX offers **high performance for the price**, making it attractive to budget-conscious operators.

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### **Cons of the Palomar TX-25CB/TX-25CB/DX**

1. **Limited Legal Power for CB (Non-HF)**

On **CB s standard 27 MHz band**, the TX-25CB is **not legal for full 25W output** CB regulations typically limit power to **4W PEP** (or 12.5W in some jurisdictions). This means the amplifier is **only fully useful for HF (non-CB) operations**.

2. **DX Mode Limitations**

The **TX-25CB/DX s DX mode (50W PEP)** is **not legal for CB use** it is intended for **amateur radio (ham) operations only**. Users must ensure they comply with **FCC or local regulations** when operating in DX mode.

3. **No Built-in Antenna Tuner**

Unlike some higher-end amplifiers, the TX-25CB does **not include an automatic antenna tuner**. Users must **manually tune their antenna** for optimal performance, which can be a hassle for beginners.

4. **Sensitivity to Poor Power Supply**

The amplifier requires a **stable, clean power source** (12V 14.4V DC). Fluctuations or poor grounding can lead to **reduced performance or damage**. A **good power supply or battery** is essential.

5. **No Built-in Noise Blanker or DSP**

Unlike some modern amplifiers, the TX-25CB lacks **advanced signal processing features** like noise blankers or digital signal processing (DSP), which can be helpful in noisy conditions.

6. **Potential for RF Feedback**

If not properly matched to the antenna, the amplifier can **feed back RF energy**, causing distortion or damage. Users must ensure **proper impedance matching** to avoid this.

7. **Limited Factory Support for HF Use**

While the TX-25CB/DX is designed for HF, **Palomar s primary focus is CB**, so technical support for HF-specific issues may be **less robust** compared to dedicated ham amplifiers.

8. **No Built-in Keyer for CW**

The TX-25CB does not include a **built-in CW keyer**, requiring users to either **use their radio s keyer** or purchase an external one for Morse code operation.

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### **Conclusion**

The **Palomar TX-25CB/TX-25CB/DX** is an **excellent choice for enthusiasts** who want **high-power HF capability** on a budget. It excels in **long-distance communication, amateur radio use, and versatility** across multiple bands. However, its **CB limitations (4W max on 27 MHz), lack of an antenna tuner, and reliance on proper power supply** mean it is **not ideal for pure CB use** unless paired with a **separate HF radio**.

The **TX-25CB/DX** is the better option if you plan to use **DX mode (50W HF)**, but it requires **compliance with amateur radio regulations**. For **strict CB-only users**, a **dedicated CB amplifier** (like the **Palomar TX-25** for 27 MHz) would be more appropriate.

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### **Recommendation**

- You are an **amateur radio operator (ham)** or plan to use HF bands (160m 10m).

- You want **high power (25W 50W PEP)** for long-distance contacts.

- You already own or plan to buy an **HF/VHF CB radio** (e.g., Yaesu FT-736R).

- You are willing to **manually tune your antenna** and ensure proper power supply.

- You **only use CB s 27 MHz band** and want a **legal, dedicated CB amplifier**.

- You **do not have a clean power source** (12V 14.4V DC).

- You **need an automatic antenna tuner** or advanced signal processing.

- You **do not want to deal with HF regulations** (if using DX mode).

- For **pure CB use**, consider the **Palomar TX-25** (27 MHz only, legal for 4W PEP).

- For **ham radio with more features**, look into **Yaesu FT-2900R with an external amplifier** or a **dedicated HF rig** like the **Icom IC-7300**.

- If you need **DX mode legally**, ensure you have an **amateur radio license** before using the TX-25CB/DX in that mode.

**Final Verdict:** The **TX-25CB/DX is one of the best budget HF amplifiers** for ham radio enthusiasts, but it is **not a drop-in solution for CB-only users**. If you are serious about HF, it is a **great investment** otherwise, a **dedicated CB amp or ham radio setup** may be more suitable.

Details:

Up for sale is a Pre Owned Vintage Palomar TX-25CB/DX Linear HF Amplifier CB Radio Unit was in working condition when removed from semi Has some light stain on the housing but overall good shape PLEASENOTE. Don't worry, we ll resolve it.

part #: tx25cb price

• $184.95

specifications hamamateuradio:

• brand: Palomar
• mpn: Tx-25cb
• model: Tx-25cb/dx
• type: Linear Amplifier
• supported modes: Am
• color: Black
• compatible product: Mobile/in-vehicle Radio
• country of origin: United States

offer hamamateuradio:

• quantity: 1
• sold: 0
• started: May 28, 2026
• availability: In Stock
• options: Ship-to-home
• best offers: True

shipping hamamateuradio:

• class: Standard
• cost: $0.00
• service: UPS Ground
• type: Fixed
• carrier: UPS
• transit: 2-5 Days

payments hamamateuradio:

• other
• wallet: Google-pay
• credit card: Diners-club

seller hamamateuradio:

• rating: 99.5%
• # reviews: 40230
• city: Columbus, Ohio

general hamamateuradio:

• condition: Used
• Radio Communication > Ham, Amateur Radio > Ham Radio Amplifiers

returns hamamateuradio:

• policy: Returns Accepted
• paid by: Seller
• method: Money back
• time: 30 Days

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