EF Johnson Viking KW Kilowatt Matchbox Ham Radio HF Antenna Tuner Coupler QRO
Johnson "KW Matchbox" model # 250-30-3 Ham Radio Antenna Tuner/Coupler from a local Amateur Radio Operator's Estate. It is the largest of the E.
Johnson Antenna Tuners that were offered, and will handle much more than the legal limit of Ham Radio HF Transmitters/Amplifiers. It is of 1950's/50's Vintage, and can match open-wire fed or coax-fed antennas, on the 80-10 Meter Ham Bands pre-"WARC", although I've used one of these KW Matchboxes on the 30, 17 and 12-Meter bands. It has a built-in 120V AC Antenna Relay for use with vintage BA Receivers and Transmitters, or can be used straight-through with modern Transceivers.
The bandswitch is stuck, and only moves a small amount - I don't know if it's just from lack of use, or if there's an actual problem with the switch. I considered removing the case, and applying some PB Blaster or similar solvent, to free up the switch. But as you can see in the photos, there are several dozen screws that need to be removed to take off the case.
Three of the four - bottom rubber feet are missing. This is the Big One, for Antenna Tuners. It includes the SWR Bridge and Coupler, and a copy of the instruction manual. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -. The item "EF Johnson Viking KW Kilowatt Matchbox Ham Radio HF Antenna Tuner Coupler QRO" is in sale since Monday, January 11, 2021.
This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Other Ham Radio Equipment". The seller is "539lj" and is located in NW Oregon. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.
- To Fit: Ham Radio Amplifier
- Compatible Brand: Universal
- Band: HF
- Type: HF Antenna Tuner
- MPN: 250-30-3
- Brand: E.
