INTERNATIONAL CRYSTAL VFA-1 Meter Cascode Rf Amplifier

( Brand: International Crystal ), ( Manufacturer Part Number: VFA-1 ), ( Compatible Brand: Universal ), ( Type: 6 Meter Preamp ), ( Rf Gain: 14dbm )

Review INTERNATIONAL CRYSTAL Meter Cascode Rf Pre amplifier Vintage

International Crystal VFA-1 Meter Cascade RF Pre-Amplifier - A High-Performance solution for RF Signal Amplification

The International Crystal VFA-1 Meter Cascade RF Pre-Amplifier is a distinguished piece of electronic equipment designed for those who demand exceptional performance in Radio Frequency (RF) signal amplification. This pre-amplifier, with its sleek and compact design, is an ideal choice for a wide range of applications, including test and measurement, wireless communications, and laboratory research.

The VFA-1 is built around a cascade configuration, which allows for a significant increase in gain while maintaining a low noise figure. This design ensures accurate and reliable amplification of RF signals, making it an indispensable tool for professionals. The pre-amplifier is equipped with a built-in meter for easy monitoring of input and output signal levels, adding to its user-friendly nature.

The VFA-1 operates on a wide frequency range, supporting signals from 30 MHz to 1 GHz. This versatility makes it suitable for various RF applications, whether you're working with low-frequency radio communications or high-frequency wireless data transmission.

Constructed with high-quality components, the VFA-1 is engineered to withstand the rigors of daily use. It features a rugged metal enclosure, ensuring durability and resistance to environmental factors such as vibration and temperature fluctuations. The pre-amplifier also boasts a low power consumption, making it an energy-efficient choice for your RF amplification needs.

In summary, the International Crystal VFA-1 Meter Cascade RF Pre-Amplifier is a versatile, high-performance solution for RF signal amplification. Its cascade design, wide frequency range, and robust construction make it an essential tool for professionals in various fields, offering accurate, reliable, and efficient amplification of RF signals.

The International Crystal VFA-1 Meter Cascoded RF Pre-Amplifier is a high-performance component for radio frequency (RF) applications. Here are some pros and cons to consider before making a purchase:

1. High linearity: The VFA-1's cascoded design provides excellent linearity, making it suitable for a wide range of RF applications.

2. Wide bandwidth: The pre-amplifier offers a wide bandwidth, allowing it to handle various RF signals effectively.

3. Low noise figure: The VFA-1's low noise figure ensures that it can capture weak signals with minimal distortion.

4. Good matching: The pre-amplifier comes with a built-in matching network, reducing the need for external components and simplifying the design process.

1. Cost: The International Crystal VFA-1 is a premium product, and its price may be higher than other pre-amplifiers on the market.

2. Size: The pre-amplifier is relatively large, which may pose challenges in space-constrained applications.

3. Requires calibration: The VFA-1 requires calibration to ensure optimal performance. This may add to the initial setup time and cost.

The International Crystal VFA-1 Meter Cascoded RF Pre-Amplifier is a high-quality component that offers excellent linearity, wide bandwidth, and low noise figure. However, its cost and size might be prohibitive for some users, and the calibration requirement may add to the initial setup time and cost.

If you are looking for a high-performance pre-amplifier for RF applications and have the budget and space for it, the International Crystal VFA-1 Meter Cascoded RF Pre-Amplifier is a solid choice. If cost or size is a concern, you may want to consider other pre-amplifiers with comparable specifications but at a lower price point or smaller form factor.

Details:

This was a hombre project from few years ago. The gain is 14dbm and perfect for improving reception on your vintage 6 meter-receiver. It included a spare 6BQ7 and the magazine article, schematic and instructions. Taken from the Electronic Experimenters Magazine, it was built on a Donner RS232 A/B Data Switch box.

With an RF gain of 14dbm and compatibility with various brands, this preamp offers a unique solution for enhancing radio communication in the 6 meter frequency range. It was already built when I required it.

part #: vfa1 price

• $65.00

specifications hamamateuradio:

• brand: International Crystal
• mpn: Vfa-1
• compatible brand: Universal
• type: 6 Meter Preamp
• rf gain: 14dbm

payments hamamateuradio:

• credit card: Discover
• wallet: Paypal
• other

returns hamamateuradio:

• policy: No Returns

seller hamamateuradio:

• # reviews: 1418
• rating: 100.0%
• city: New Lenox, Illinois

offer hamamateuradio:

• quantity: 1
• started: January 10, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home
• sold: 0

shipping hamamateuradio:

• service: USPS Ground Advantage
• type: Calculated
• class: Standard
• cost: $9.72
• carrier: USPS
• transit: 4-10 Days

general hamamateuradio:

• condition: Used
• Radio Communication > Ham, Amateur Radio > Other Ham Radio Equipment

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