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Antenna Matchbox 250-23

Antenna Matchbox 250-23; Johnson, E.F.; (ID = 1246537) Antenna
Antenna Matchbox 250-23; Johnson, E.F.; (ID = 1245063) Antenna Antenna Matchbox 250-23; Johnson, E.F.; (ID = 229802) Antenna
Antenna Matchbox 250-23; Johnson, E.F.; (ID = 1245064) Antenna  
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Antenna Matchbox 250-23; Johnson, E.F.; (ID = 1245063) Antenna
Johnson, E.F.;: Antenna Matchbox 250-23 [Antenna] ID = 1245063 900x782
Select picture or schematic to display from thumbnails on the right and click for download.
For model Antenna Matchbox 250-23, Johnson, E.F.; Waseca (MN):
EF Johnson advertising description: “275 Watt Matchbox – Performs antenna loading and switching functions required in medium power amateur stations. Bandswitching 80, 40, 20, 15 and 10-11 meters. Matches balanced antennas from 25 to 1250 ohms and unbalanced or single wire antennas from 25 to 3000 ohms. Input impedance, 52 ohms, rated 275 watts. Fully shielded. Provision for RF probe.”
 
Country:  United States of America (USA)
Manufacturer / Brand:  Johnson, E.F.; Waseca (MN)
Brand
 
Viking
Year: 1956 Type: Antenna (Aerial) and Coupler
Wave bands Wave Bands given in the notes.
Details
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: Antenna Matchbox 250-23 - Johnson, E.F.; Waseca MN
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 10.5 x 9.7 x 7 inch / 267 x 246 x 178 mm
Notes For Amateur bands from 3.5-30 mc.
Price in first year of sale 50.00 $
Literature/Schematics (1) Allied Radio Catalog Nº 150, 1956

Model page created by Vitor Oliveira. See "Data change" for further contributors.

All listed radios etc. from Johnson, E.F.; Waseca (MN)
Here you find 47 models, 36 with images and 23 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


  
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