
( Brand: Mfj ), ( Type: Active Audio Filter ), ( Country/region Of Manufacture: United States )
The MFJ-751 Audio 3-way Filter Clean is a comprehensive solution designed to improve the performance of your audio equipment. This high-quality filter cleaner is specifically engineered to remove dust, debris, and oxidation from your audio components, ensuring optimal sound quality and extended lifespan.
The MFJ-751 is a 3-way filter cleaner, meaning it can be used on a wide range of audio equipment, including amplifiers, speakers, and receivers. It uses a non-conductive, non-flammable liquid that safely and effectively removes build-up without causing damage to the delicate components inside your equipment.
The filter cleaner comes with three separate nozzles, each designed for different types of filters. The first nozzle is a narrow, pointed tip for reaching tight spaces and small filters. The second nozzle is a wider, flat tip for larger filters and surfaces. The third nozzle is a straw-like applicator for reaching deep into vents and hard-to-reach areas.
To use the MFJ-751, simply apply a few drops of the cleaning liquid to the nozzle of your choice, insert it into the filter, and gently push and pull the nozzle to dislodge any build-up. The liquid will dissolve the dirt and grime, allowing it to be easily wiped away. The filter cleaner is odorless and leaves no residue, so there's no need to wait for it to dry before using your equipment again.
In addition to its cleaning capabilities, the MFJ-751 also includes a built-in moisture indicator. This feature ensures that you're only using fresh, clean liquid, and alerts you when it's time to replace the bottle.
The MFJ-751 Audio 3-way Filter Clean is a must-have tool for any audio enthusiast. It's easy to use, safe for all types of audio equipment, and can help extend the life of your equipment while improving its sound quality. With the MFJ-751, you can enjoy clear, uninterrupted audio for years to come.
Pros of buying a MFJ-751 3-way audio filter:1. Improves audio quality: The filter can help reduce interference and noise on your ham radio, resulting in clearer and more enjoyable audio.
2. Easy to use: The MFJ-751 is a simple, three-knob device that is easy to operate, even for beginners.
3. Durable construction: The filter is made of high-quality materials and is built to last, making it a good investment for the long term.
4. Versatile: The MFJ-751 can be used with a variety of ham radio equipment, making it a versatile addition to your station.
Cons of buying a MFJ-751 3-way audio filter:1. Expensive: Compared to some other audio filters on the market, the MFJ-751 can be a bit pricey.
2. May not be necessary for all users: If you already have a high-quality radio and don't experience much interference, the MFJ-751 may not be necessary for you.
3. Limited adjustability: The MFJ-751 has only three knobs, which may limit its ability to fine-tune the audio to your exact preferences.
Conclusion:Overall, the MFJ-751 is a high-quality audio filter that can help improve the audio quality of your ham radio. While it may be a bit pricey and have limited adjustability, its durability, ease of use, and versatility make it a worthwhile investment for many ham radio operators. If you are experiencing interference on your radio and want to improve the audio quality, the MFJ-751 is a good option to consider.
Recommendation:If you are in the market for an audio filter for your ham radio, the MFJ-751 is a solid choice. Its high-quality construction, ease of use, and versatility make it a worthwhile investment for many operators. However, before making a purchase, consider your budget and whether you really need an audio filter to improve your radio's performance. If you are unsure, you may want to do some additional research or consult with other ham radio operators to determine if the MFJ-751 is the right fit for your needs.
We see no problems. Included a correct power plug for running 9 to 16v dc to the filter.
Shipping shipped quickly when paid quickly. Three way action using functions peak,notch LP.
Condition used, working. It was the preferred filter type used by many long term short wave listeners hams on receivers like the Sp 6 HQ 129x, ken wood r600's, drake swl4 or r4a or r4b and many others. It is an good companion to any vintage tube radio which has only volume controls and or selectivity switches.
The controls and function switch have been cleaned with exit 5. The last picture is the picture I sent Mfj asking how to adjust them and shows the two trimming inter stage resistors. I opened a ticket with Mfj and Mfj service told me that the adjustment of the two resistor trimmer son the main board is simple using an insulated adjusting tool, peak for best sound.
This one was used on a Hammond HQ 129x and helped the operator log many foreign countries. Requirements simply patch the audio output of your receiver to the input rca jack on the rear apron and then plug your speaker into the sister rca jack or your headphones into the front phono connector on the front panel.
It is ready to go. For sale an original Mfj model 751 active audio filter.
50 to 1 to defray the cost of packing getting an item through the process where there are many fees.