Back to main page
Woody's 
JOHNSON VIKING VALIANT TRANSMITTER
W0UI
E. F. Johnson Model Number:  240-104


CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW


Over the years Woody has owned three of these great transmitters.
Woody has owned this particular rig since the spring of 1997.

RF output into an MFJ dummy load via a digital wattmeter shows about xx-watts.

CLICK HERE to email Woody

Built for perhaps six years: 1956 through 1962
the EF Johnson Viking Valiant transmitter 
became one of the leading radio transmitters of it's era.

It came in factory-wired or kit-form.
Factory-wired transmitters have riveted in tube sockets.
Kit-form transmitters have screw and nuts securing the tube sockets.


Johnson Viking Valiant
Modes: AM/CW
Bands: 160 - 10 Meters
Input Power: 200W-AM, 275W-CW
Final Tubes: Three 6146b in parallel

There are 18-tubes in this rig including:
6AU6 6CL6 5763 6146 6146 6146 6AQ5 
12AU7
12AX7 6AL5 6C4 12AU7 6146 6146 
6BY5GA
5V4 866A 866A 0A2 0C3 0C3

Modulator: Two 6146b in push-pull
New Price: $349.50 kit and $439.50 wired
Manufactured between 1956-1962
Size: 11.5"h x 21.0"w x 16.25"d
Approx. Weight: 73 lbs

Johnson Valiant  PDF Schematic  (6.27 MB)
EF Johnson 1957 Color Sales Flyer  (7.44 MB)

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

WARNING!! 
There are High Voltages with enough punch to easily kill you 
exposed all over inside these old rigs
both above and below the chassis.
The capacitors can hold a lethal charge 
well after voltage is turned off and the rig is unplugged. 
Make sure to bleed off capacitors with an insulated and grounded screw driver 
before touching anything 
even after the unit is physically unplugged from the AC outlet.

Remember the old ham radio and electronics practice... 
Work on the radio one handed leaving one hand behind your back.
If you have both hands inside the unit and accidentally touch a lead or brush a capacitor
current could potentially pass through your body and stop your heart.

Always instruct others to turn off the circuit breaker 
or unplug the radio 
before touching you if you are bit else they might be electrocuted, too.

ABOVE CHASSIS

CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

UNDER CHASSIS
   



CLICK ON A PICTURE TO ENLARGE IT FOR A CLOSER VIEW

OTHER RELATED JOHNSON VALIANT WEB PAGES: 

N2AWA Valiant Restoration Page
An excellent technical tutorial of the Johnson Viking Valiant Transmitter
Tutorial on How To Tune Up the Johnson Viking Valiant Transmitter
.
.
.
.
.

Since 5 April, 2013:


hit tracker

All personal materials, comments, pictures copyright 1997-2013 R  Linwood (4L RANCH)