1. Ham, Amateur Radio Communication For Sale
  2. sku: 12415605648407611
  3. HAMMARLUND VLF-31

HAMMARLUND VLF-31 Radio Receiver Powers Up Tube Ham Vlf 0A3 Communications

Vlf-31 Hammarlund Vlf 31 Radio Receiver Powers Up Missing 0a3 Tube Communications Ham

( Brand: Hammarlund ), ( Manufacturer Part Number: VLF-31 ), ( Type: Radio Receiver )

Review HAMMARLUND Vlf 31 Radio Receiver Powers Up Missing 0a3 Tube Communications Ham

HAMMARLUND VLF-31 VLF 31 Radio Receiver - A Powerhouse of Communication in the Longwave Band

The Hammarlund VLF-30/31 VLF 31 Radio Receiver is a remarkable piece of engineering, crafted with precision and designed to cater to the discerning needs of radio enthusiasts and professionals alike. This high-performance receiver is specifically engineered to operate on the Longwave (LW) band, offering an unparalleled listening experience for communications in the ham radio spectrum.

The heart of this receiver is the OA3 tube, a legendary component known for its robustness and exceptional sensitivity. The Hammarlund VLF-31 harnesses this tube's potential to deliver crystal-clear audio and superb reception, even under challenging conditions. The receiver's design emphasizes stability, with a high-quality power supply system that ensures consistent performance, even during extended use.

The Hammarlund VLF-31 features a user-friendly interface, with easily accessible controls and a clear, easy-to-read display for quick adjustments and monitoring. The receiver boasts a wide frequency range, covering the LW band from 150 to 270 kHz, making it an ideal tool for exploring the vast world of longwave broadcasts and ham radio communications.

In addition to its impressive performance, the Hammarlund VLF-31 also stands out for its robust construction. The receiver is built to last, with a heavy-duty chassis and high-quality components that can withstand the rigors of daily use. It's a testament to Hammarlund's commitment to quality and their understanding of the demands placed on professional-grade equipment.

Whether you're a seasoned ham radio operator, a curious novice, or a radio enthusiast looking to expand your horizons, the Hammarlund VLF-31 VLF 31 Radio Receiver is an indispensable tool. Its unmatched performance, durability, and versatility make it a worthy addition to any radio shack, offering a gateway to the fascinating world of longwave communications.

Pros and Cons of buying a Hammarlund VLF-31 VLF-31 Radio Receiver

Pros:

1. High-Frequency Coverage: The Hammarlund VLF-31 VLF-31 radio receiver covers a wide range of frequencies, making it suitable for various communication purposes, including long-distance, and low-frequency (LF, MF, and HF) bands.

2. Tube Powered: The use of the 0A3 tube provides a warm, analog sound that some audiophiles prefer over solid-state devices.

3. Durable Construction: Known for its robustness, the Hammarlund VLF-31 VLF-31 radio receiver is built to withstand heavy use, making it a reliable choice for both amateur and professional users.

4. High-Quality Components: The use of high-quality components in its design ensures excellent performance and minimizes noise interference.

Cons:

1. Size and Weight: The Hammarlund VLF-31 VLF-31 radio receiver is quite large and heavy, which might make it less portable compared to modern, compact receivers.

2. Tube Maintenance: Tube-powered equipment requires regular maintenance, including tube replacement, which can be costly and time-consuming.

3. Power Consumption: Tube-powered devices consume more power compared to solid-state devices, which could lead to higher operating costs.

4. Limited Modern Features: While the Hammarlund VLF-31 VLF-31 radio receiver offers excellent performance, it lacks some modern features like digital displays, built-in speakers, and USB ports that are common in contemporary receivers.

Conclusion:

The Hammarlund VLF-31 VLF-31 radio receiver is a high-performance, tube-powered communication receiver ideal for those who appreciate the warm, analog sound and are willing to accept the larger size, higher power consumption, and occasional tube maintenance. For those seeking a more portable, modern receiver with digital features, other options may be more suitable.

Recommendation:

If you are a serious radio enthusiast looking for a high-quality, tube-powered receiver with a wide frequency range, the Hammarlund VLF-31 VLF-31 radio receiver could be an excellent choice. However, if portability, modern features, or lower maintenance are priority factors, you might want to consider other options on the market.

Details:

Being offered is a VLF receiver as shown in the photos. The unit is internally complete and in overall good condition.

part #: vlf31 prices

  • $14.99-$24.99

specifications hamamateuradio:

  • brand: Hammarlund
  • mpn: Vlf-31
  • type: Radio Receiver

seller hamamateuradio:

  • # reviews: 5665
  • rating: 100.0%
  • city: Smyrna,

payments hamamateuradio:

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

offer hamamateuradio:

  • sold: 0
  • quantity: 1
  • availability: In Stock
  • started: July 24, 2025
  • best offers: True
  • options: Ship-to-home

shipping hamamateuradio:

  • service: UPS Ground
  • transit: 5-12 Days
  • class: Standard
  • type: Calculated
  • carrier: UPS
  • cost: $187.22

returns hamamateuradio:

  • policy: No Returns

general hamamateuradio:

  • condition: For parts or not working
  • Radio Communication > Ham, Amateur Radio > Ham Radio Receivers
type: radio receiver,
category: electronics > radio communication > ham, amateur radio > ham radio receivers, sku: 12415605648407611,
Hammarlund VLF-31 Is Similar To:
  • (30.4% similar) Large early one of a kind Hammarlund radio tuning capacitor in excellent physical condition model TC500C stands 3 high by 4 wide deep shaft extends 1...(May 5th, 2018)
  • (29.8% similar) For parts or repair. Hammarlund CB-23 untested has no power cord...(September 15th, 2018)
  • (41.2% similar) Unit is in average cosmetic condition with signs of wear tear usage, internals look good and no corrosion seen. The unit does power on, however the knob is extremely hard to turn. I do not pad shipping prices, postage is calculated using's shipping calculator based on dimensions and weight of the ...(March 12th, 2016)
  • (47.4% similar) Item might need some minor repairs to be fully functional. There was also an audible faint static. I did not see the two primary meters light up band spread and main tuner. Please see photos for details. Original operating instructions manual included. A really sharp looking collectible. The item is...(August 28th, 2016)
  • (46.4% similar) Powers on and sound comes that is as far I can tell selling untested. Hammarlund HQ 129 x tube radio selling untested. With all manual...(November 17th, 2016)
  • (37.9% similar) These came from my dad, a long time train collector, vintage radio collector, and amateur radio operator since the 1950S. I am not an expert in these, but I do have a passing familiarity with them. If I mis describe anything, please bear with me and let me know. Hammarlund HQ 145 not mint see pics. ...(February 13th, 2016)
  • (38% similar) Note this radio is very heavy. Made sometime between q multiplier. Also probably needs alignment to make it right. 2 am broadcast band works well. Speaker output and headphone jack both work does not have a built in speaker only. Crystal calibrator with selectivity and phasing. Free shipping. ...(January 17th, 2016)
  • (34.2% similar) ...(October 16th, 2016)
  • (40.6% similar) Removed from a working HQ 180 receiver. Comes with a few parts ext rod, screws, knob. USA Canada buyers only please. Clock works fine...(April 15th, 2016)
  • (51.1% similar) I inherited from my grand father that passed. 2 speakers as well. He was a genius with all this electronic stuff. Seems to work not sure when I move the dials things work. Looking for 300 us dollars...(May 20th, 2016)
  • (30.6% similar) Always stored in doors, never abused. This is a rare find so don't miss out. Condition : this is a very nice Hammarlund HX-one linear amplifier for ham radio. It is very clean other than some minor shelf wear, and dust on the inside...(November 11th, 2017)
hamamateuradio logo
4 offers $14.99–$24.99 USD
  • New. Offer #1 priced at $15.00 + $0.00 shipping estimate = $15.00* total. This is a wealth of information for any Radio wanting to be repaired or parting out. This is a large Manual on CD w/ Adobe Reader Many Pages of Information.FREE SHIPPING
  • Unspecified. Offer #2 priced at $14.99 + $0.00 shipping estimate = $14.99* total. Must for every owner of this rare receiver. For sale is reprint of Hammarlund SP-600-VLF31 Manual.FREE SHIPPING
  • Like New. Offer #3 priced at $24.99 + $0.00 shipping estimate = $24.99* total. FC-102 - Instruction Manual. Various Schematics SX-18 Sky Challenger II, Model SX-32 Sky Rider & Model S-20, Sky Champion Model S-31 Model S-31-A.FREE SHIPPING
  • Brand New. Offer #4 priced at $16.78 + $0.00 shipping estimate = $16.78* total. ULTIMATE HAMMARLUND OPERATION, REPAIR & SERVICE MANUALS (PDFs on DVD) This DVD contents more than 300 Original Hammarlund PDF operation, service manuals and schematics files for a lots of HAMMARLUND products .FREE SHIPPING

Copyright © hamamateuradio.com