Featuring Fine Vintage and Modern Amateur Radio Gear For Sale

E.F. Johnson Viking Kilowatt Matchbox Antenna Tuner with SWR Meter & Directional Coupler in Very Good Cosmetic Condition

Write a Review
MPN:
250-30
Condition:
Used
Shipping:
$78.00 (Fixed Shipping Cost)
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
  • E.F. Johnson Viking Kilowatt Matchbox 250-30 antenna tuner with SWR meter and directional coupler. Very good condition classic high-power balanced tuner for ham radio.
$199.99
Frequently bought together:

Description

E.F. Johnson Viking Kilowatt Matchbox Antenna Tuner (with SWR Meter & Directional Coupler)
 
This KW Match box is in very nice condition aside from a few marks on the top, it is super clean.
 I looked inside through the perforations and everything is intact including the special 3PDT relay which is original.
 The Johnson Directional Coupler is included and the meter appears to be working okay.
 
  I do not have a balanced line antenna to test it on. I did put RF through it on 20 meters and saw that the meter deflects and calibrates. 
 It seemed to tune into a dummy load but seemed to flatten out when I turned up the input power.
 It is likely it will need attention and will need to be cleaned up but nothing looks broken or loose inside.
.  I am selling it as is, as described for part, repair or to use as it is.
 Due to the size and cost for shipping I cannot accept a return for this item.
 
Shipping should be about $78.00 depending on how far you are from my state of Wisconsin.
 I will adjust the shipping cost accordingly.
  
 I will include a first generation copy of the manual.
 
 
Official Johnson Part Number
  • Main Unit: 250-30 (standard) or 250-30-3 (version wired with Directional Coupler and SWR indicator).
This is the high-power (Kilowatt) balanced antenna tuner from the early 1960s, designed for open-wire ladder line, balanced lines, and high-power operation with Johnson Viking Desk KW and other legal-limit amplifiers.Key Features
  • True balanced L-network / T-network design with band switching (80-10m).
  • Built-in SWR meter on the front panel.
  • External Directional Coupler (the cylindrical unit in your photos) for accurate forward/reflected power measurement.
  • Heavy-duty construction capable of handling 1 kW (and more in practice on SSB).
View AllClose