📡 Master Morse Like a Pro — Stay Connected, Stay Ahead!
The MFJ-557 Deluxe Morse Code Practice Oscillator is a compact, reliable device designed for serious Morse code enthusiasts. It operates on either a 9V battery or 110VAC power, features adjustable volume control for clear signal modulation, and comes with a one-year warranty from MFJ Enterprises. Perfect for professionals and hobbyists aiming to sharpen their telegraphy skills with precision and convenience.
| ASIN | B00OAHNA10 |
| Amazon Bestseller | #135,998 in Musical Instruments ( See Top 100 in Musical Instruments ) #1,981 in Music Tuning Accessories |
| Batteries Included | No |
| Customer Reviews | 4.2 4.2 out of 5 stars (2) |
| Date First Available | October 29, 2014 |
| Model Number | MFJ-557 |
| Product Dimensions | 21.59 x 9.53 x 5.72 cm; 571.53 g |
櫛**治
電鍵は自作でしたので、今年見た目が良かったので購入してみました、が電源がなかったので別に購入する事になりました、さて、使った感想ですが、発信音は変調出来るのでとても良いです、電鍵は思っていたより安っぽくて、自分の電鍵を付けて使用してます、
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