R&L Electronics
Text Questions to
513-868-6399
800-221-7735

   Catalog » Surplus » MFJ557 My Account | Cart Contents | Checkout   


Search
 
Use keywords to find the product you are looking for.
Advanced Search
Icom
Jetstream
Kenwood
MFJ
Yaesu

Used Equipment

Links

Screen Savers
Brand
Email
Email
Subscribe to our email list
Unsubscribe to our email list
Catalog
Request Catalog
Download eCatalog
Store Info
FAQ
Map to Store
Special Events
Store Hours

MFJ-557 MFJ 3 MFJ557
[MFJ557]

$62.95

CODE PRACTICE OSCILLATOR with KEY

This item is currently in stock.

View the manufactures page for MFJ557
View the eham review page for MFJ557

The MFJ-557 Deluxe Morse Code Practice Oscillator features a Morse Code
straight key on a non-skid heavy steel base -- it stays put on table and doesn't move around while you're sending!

The MFJ-557 lets you practice sending code at home, work, riding in your car -- practically anywhere -- because it's so easy to take it wherever you go. Volume control adjusts from barely audible to blaring full sound. You can practice
without bothering anyone.

Tone control gives you a wide adjustment from high "squeaky" to low "booming" tones. You even get an earphone jack for private listening. You can plug in an external speaker for super high volume in the classroom.

When you're finished cleaning up your sloppy fist with the MFJ-557, hook up the straight key to your transmitter and go on-the-air sounding like you were born working QSOs. Don't pass up this super CW buy! The MFJ-557 also has a built-in
speaker and adjustable contacts.

The MFJ-557 Deluxe Morse Code Practice Oscillator runs on a 9 volt battery (not included) or 110Vac. It measures 8-1/2" x 2-1/4" x 3-3/4".

Optional Accessories

MFJ 2 MFJ1312DAC ADAPTER $ 18.95Buy MFJ1312D
CODE PRACTICE OSCILLATOR with KEY MFJ-557 KEY/KEYERS Straight Paddle RADIO ACCESSORIES

 

Shopping Cart more
9 x ALINCO ADLM135
7 x ANYSECU WEP9900
1 x ALINCO DR438T
22 x ALINCO DRMA1OM
1 x ALINCO EA141
1 x OPEK HR16
1 x OPEK HR22
14 x ALINCO DJ500TOM
1 x ALINCO DR130TOM
1 x ALINCO DR140TOM
2 x ALINCO DJVX50T
1 x RADIO WAVZ JP2B
1 x MFJ 3 MFJ310
1 x ALINCO DR620TOM
1 x MFJ MFJ1818
1 x DIAMOND RH205
2 x ALINCO DJ191TOM
1 x ALINCO DR600TOM
1 x OPEK HR14
1 x ALINCO EA211
1 x ALINCO DJX1TOM
1 x ALINCO DM330MVTOM
2 x ALINCO DJ191TSM
1 x ALINCO DR150TOM
7 x ALINCO DJ120TOM
1 x ALINCO DR570TOM
1 x MFJ 3 MFJ1714
2 x ALINCO DJ195TSM
1 x ALINCO DJV5TOM
1 x ALINCO DJ162TDSM
1 x ALINCO DJX2TOM
1 x ALINCO DRMO6TOM
1 x ALINCO DJX3TOM
1 x ALINCO EA0062
1 x MFJ MFJ1714S
1 x ALINCO DR590TOM
1 x ALINCO DR600TAOM
3 x ALINCO DJ196TSM
1 x ALINCO CLOSEOUT 2MANT
1 x ALINCO DJ190TSM
1 x ALINCO DR605TOM
1 x ICOM FAB45V
1 x ALINCO DR03T
3 x ALINCO DM30T
1 x YAESU SRA16B
1 x ALINCO DR610TOM
17 x ALINCO ADUA83
1 x ALINCO DR599TOM
1 x ALINCO DR592TOM
1 x COMET NS146
1 x RADIO WAVZ JP2U
1 x RADIO WAVZ JP2S
1 x YAESU SRA15
1 x ALINCO DJX2000TOM
10 x ALINCO DJ190TOM
14 x ALINCO DJ196TOM
1 x MFJ MFJ1730
10 x CERTIFICATE GIFT125
1 x AVANT AC3PC
15 x BONGO TIES A5015PACK
1 x AMERITRON PNP35
1 x ALPHA DELTA DELTAC
1 x BONGO TIES B502
2 x ASTRON disc SRM122
1 x AMERITRON PNP7D
1 x ALPHA DELTA DELTACIN
1 x CERTIFICATE GIFT160
1 x ALINCO EA0087
1 x AMERITRON PNP8D
1 x BONGO TIES A501
1 x AMERITRON MOD10M
1 x AMERITRON CF5
1 x AMERITRON PNP10MY
1 x AMERITRON PNP7DK
16 x ALINCO EA0078
1 x AMERITRON ICP240
1 x AMERITRON PNP5D
1 x AMERITRON PNP5M
1 x AMERITRON PNP8DI
1 x AMERITRON PNP13D
1 x AMERITRON MOD10MB
1 x AMERITRON ICP120
1 x AMERITRON PNP7DI
1 x AMERITRON CF5X
25 x ASTRON disc VS50M
38 x ALINCO DR735T
11 x LACROSSE WT3181PLX1
1 x MFJ 3 MFJ1717SF
1 x LACROSSE 6171270
1 x MFJ 3 MFJ1538
1 x MFJ 3 MFJ1713SF
1 x LACROSSE 4041235UAPL
1 x MFJ 3 MFJ1702
1 x LACROSSE 5131419V4
1 x MFJ 3 MFJ310SF
1 x MFJ 3 MFJ5535
17 x ALINCO DRMD520T
10 x ASTRON disc SS30
1 x MFJ 3 MFJ346M
1 x MFJ 3 MFJ348S
1 x MFJ 3 MFJ288R
1 x MFJ 3 MFJ348T
1 x MFJ 3 MFJ886C
1 x MFJ 3 MFJ633
1 x MFJ 3 MFJ282R
1 x MFJ 3 MFJ345S
1 x MFJ 3 MFJ295R
1 x MFJ 3 MFJ284I
1 x MFJ 3 MFJ310S
1 x MFJ 3 MFJ284Y
$39,096.09
Manufacturer Info
Other products


Follow us on Facebook



NANOVNA
SAA2N

VNA
$109.95


YAESU
FT65R

2m/70cm HT
$109.95


TYT
TH8600

25 Watt 2m/70cm Mobile
$129.95

Amplifiers and Preamps
HF Amplifiers
2m Amps/Preamps
Antennas
Multiband HF Base
Multiband HF Mobile
Multiband HF Portable
2m Base
2m Mobile
Multiband VHF/UHF Base
Multiband VHF/UHF Mobile
Multiband HF/VHF/UHF Mobile
Antenna Accessories
Duplexers
Triplexers
Rotators
Antenna Mounts
Magnet Mounts
Lip Type Mounts
Antenna Tuners
HF Automatic
HF Manual
Books
Study Guides

Cable, Coax, Wire
HT Jumpers
Ground Wire
Ladderline
Mini 8/RG8X w/Connectors
RG8 w/Connectors
Rotator Cable
Connectors
Adapters
Connector End
Power Supplies
Switching 15-40 amps
Transformer 15-40 Amps
Wall Cubes
Radios
2m Handhelds
2m/70cm Handhelds
2m Mobile
2m/70cm Mobile
HF Base
HF/VHF Base
Multiband HF/VHF Mobile
Radio Accessories
Clocks
Coax Switches
External Speakers
Lightning Arrestors
SWR Analyzers
TNC/Sound Card Interfaces
Wattmeters
Tower
Rohn 25G type
Rohn 45G Type

Copyright © 2024 R&L Electronics
1315 Maple Ave
Hamilton, Ohio 45011
800-221-7735
513-868-6574 Fax
sales@randl.com