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MFJ-557 Deluxe Morse Code Practice Oscillator Straight Key w/ Volume Control - Picture 1 of 6
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SOLD
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MFJ-557 Deluxe Morse Code Practice Oscillator Straight Key w/ Volume Control

Condition:
Used
“little used”
Sold for:
US $55.00
ApproximatelyC $75.36
Shipping:
Free Economy Shipping. See detailsfor shipping
Located in: San Gabriel, California, United States
Delivery:
Estimated between Thu, Jun 27 and Sat, Jun 29 to 43230
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Buyer pays for return shipping. See details- for more information about returns
Payments:
     

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Seller information

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eBay item number:335381927534

Item specifics

Condition
Used
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller Notes
“little used”
Features
Volume controls
MPN
MFJ-557
To Fit
Ham Radio Transceiver
Compatible Brand
Universal
Brand
MFJ
Type
Oscillator
UPC
702646177954

Item description from the seller

ken13698

ken13698

100% positive feedback
3.6K items sold
Seller's other itemsContact

Detailed seller ratings

Average for the last 12 months

Accurate description
5.0
Reasonable shipping cost
4.9
Shipping speed
5.0
Communication
5.0

Seller feedback (1,220)

p***8 (215)- Feedback left by buyer.
Past 6 months
Verified purchase
Excellent seller. Worked with me to adjust delivery date so I’d be home to receive it. I appreciate that! Product as described and well packed. Highly recommend.
n***e (949)- Feedback left by buyer.
Past 6 months
Verified purchase
Great Seller!!! Item arrived fast, was well packed and was exactly as described.
1***a (430)- Feedback left by buyer.
Past 6 months
Verified purchase
KEN is a great Seller, Packaged extremely well and ships out really quick. Second time dealing with this Seller and would buy from again and again
See all feedback

Product ratings and reviews

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Write a review
4.9
26 product ratings
  • 24 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 22 reviews
  • by murpee0
    Nov 05, 2019Top favourable review

    Well designed and very rugged.

    This is a very rugged unit. I do like the rubber skid pads that help to grip on flat surfaces. The unit assembles easily. It is great for ''gadget'' type hobbyists, yet I did MC in the military, and this is the genuine article.

    Verified purchase: YesCondition: NewSold by: fucheng4901

  • by 94bond
    Jan 13, 2017Top critical review

    fine key, ugly oscillator

    I'm pleased with the key, but not with the sound of the oscillator. Each beep descends rapidly in pitch, with the result that even perfectly keyed morse code sounds a little drunk. The tone is also raspy and harsh (triangle wave). I checked some YouTube videos, and it seems these traits are typical of this model, although not all descend in pitch as much as mine does. My oscillator is so repulsive to my ear that I ended up buying a serial to usb conversion cable so I could use software on my computer to generate the sound. If I had known the oscillator was going to be like this then I probably would have purchased a higher quality key without an oscillator.

    Verified purchase: YesCondition: NewSold by: gigaparts

  • by niog_58
    Feb 05, 2023

    Nice little self contained morse key.

    Morse key with adjustable gap and tension. Volume and tone button. Takes a 9v battery. Reasonable sturdiness and weight. Decent quality for price and an all in unit for anyone who just wants to either learn morse or practice morse.

    Verified purchase: YesCondition: Pre-OwnedSold by: spray281

  • by jihus-36
    Oct 03, 2018

    GREAT Product!!!!!

    This device has really helped me to send Morse Code much better. After listening to my coding, I have recognized several issues that I need to address to send more consistent cod. Thank you for a wondedrful product. -Dave H,

    Verified purchase: YesCondition: NewSold by: gigaparts

  • by lada1467
    May 05, 2021

    Works great

    Works great, heavy enough to not move around, rubber pads prevent scratching surfaces. I see no need for a separate power supply, the battery is lasting a long time.

    Verified purchase: YesCondition: NewSold by: gigaparts

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