WILCOX M57D1 Wwii Limiter Amplifier Thordarson Transformers Ham Tube Radio

( Brand: Wilcox ), ( Model: M57D1 ), ( Country/region Of Manufacture: United States ), ( Type: Line Amplifier )

Review WILCOX Wwii Limiter Amplifier Thordarson Transformers Ham Tube Radio

The M57D1 WWII Wilcox Limiter Amplifier, equipped with Thordarson transformers, is a remarkable piece of vintage ham tube radio technology. This amplifier, a testament to the ingenuity and craftsmanship of the mid-20th century, was designed to enhance the performance of ham radios during the era of wireless communication.

The M57D1 features a Wilcox limiter circuit, a technology that was pioneered in the 1930s and 1940s as a solution to the problem of excessive distortion in high-power radio transmitters. This circuit uses a pair of diodes to clip the input signal, effectively limiting the output power and reducing distortion. The result is a cleaner, more efficient signal that can travel further without degrading.

The amplifier is powered by Thordarson transformers, named after their inventor, Mahlon L. Thordarson. These transformers were renowned for their superior quality and performance, and they were widely used in ham radios and other high-power electronic devices of the time. The Thordarson transformers in the M57D1 Wilcox Limiter Amplifier contribute to its exceptional audio output and reliability.

The M57D1 is a visually appealing piece of vintage technology, with a sturdy construction and a classic design that harks back to the golden age of radio. It is a collector's item for ham radio enthusiasts and vintage electronics aficionados, and it can also be used as a functional amplifier in a vintage ham radio setup. Whether you are a collector, a hobbyist, or a radio enthusiast, the M57D1 WWII Wilcox Limiter Amplifier with Thordarson transformers is a truly unique and exciting addition to your collection.

1. Historical Value: The M57D1 is a vintage WWII Wilcox Limiter Amplifier, which adds a unique and historical appeal to any ham radio collection.

2. High-Quality Components: Thordarson Transformers are known for their high-quality construction and performance, ensuring reliable operation and excellent sound quality.

3. Versatility: The M57D1 can be used with various tube radios, making it a versatile addition to any ham radio setup.

4. Rare and Collectible: Due to its age and rarity, the M57D1 is a highly collectible item, which can potentially increase in value over time.

1. Expensive: Due to its age and rarity, the M57D1 can be quite expensive, which may be a deterrent for some hobbyists.

2. Maintenance Required: Vintage equipment may require more maintenance and repair work compared to modern components.

3. Limited Compatibility: While the M57D1 is versatile, it may not be compatible with all modern ham radios, requiring additional adapters or modifications.

4. Potential for Damage: Older components are more susceptible to damage due to age, handling, or improper storage, which can impact their performance and longevity.

The M57D1 WWII Wilcox Limiter Amplifier with Thordarson Transformers is a valuable addition to any ham radio collection, offering a unique historical appeal and high-quality sound. However, its age and rarity may make it an expensive investment, and potential issues with maintenance and compatibility should be considered. If you are a serious collector or hobbyist who appreciates vintage equipment, the M57D1 could be a worthwhile investment. But, if you are looking for a more affordable or modern solution, there are other options available that may better suit your needs.

Details:

I can find little information on this unit. My guarantee is void if you a use these in an circuit not designed to run this part or tube type b that has been restored serviced. I powered the unit on my metered Mauriac, it pulled 450ma at 80vac. The copy reads Wilcox limiter amplifiers type M57D1 put one in your 600 ohm speech line and increase effective transmitter power efficiency 3db.

Priority mail. I checked the winding DVRs of transformers had access to they seem fine.

This limiter line amplifier comes with quality transformers made by thordarson.

As mentioned before, my tubes are 100 guaranteed. Up for sale is a Wilcox M57D1 limiter amplifier. I found a 1946 war surplus ad referring to it ve included the in pictures.

Made in the USA for us military, dating from wwii. In conclusion-here is a Wilcox M57D1 limiter amplifier fair to good shape for parts or repair. Transmitting tubes are tested on kopeck linear power supplies.

All tubes are pre-tested on a encore Tc-154 for shorts and gas, then tested gm plate current calibrated Hickok TV-7d us. I can barely make out the type numbers and did notice electrolytic capacitor begin to get warm, so powered down.

Items described to the best of my ability.

specifications hamamateuradio:

• brand: Wilcox
• model: M57d1
• country/region of manufacture: United States
• type: Line Amplifier

Shipping hamamateuradio:

• handling: 3 days
• type: Calculated

General hamamateuradio:

• in stock: Yes
• condition: Used
• consumer electronics > radio communication electronics > ham amateur radio communication

Payments hamamateuradio:

• PayPal

Offer hamamateuradio:

• Started: May 27, 2017, 2:11 am
• best offer: true
• quantity: 1
• Sold: 0
• bids: 0

Returns hamamateuradio:

• time: 14 Days
• type: Money Back
• paid by: Buyer
• policy: returns accepted

Seller hamamateuradio:

• city: Orinda, California
• zipcode: 94563

Ratings:

1. as represented, well packed, thanks 05-24-17
2. Excellent good luck to you 05-24-17
3. Tubes are as described and photographed. Well packaged. 05-25-17
4. Very good 05-24-17
5. Excellent seller 05-24-17

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