Equipment information:

WRL Electronics SM-90 Other
Manufacturer:
WRL Electronics
Model: SM-90
Date: 1957
Category: Radio, Communication
Group: Other
Description: Screen Modulator
Information:
                                    1-2. The WRL Model SM-90 Screen modulator is made by WRL
Electronics, Inc. of Council Bluffs, Iowa. The Screen
Modulator is designed specifically for use with the Globe
Chief Transmitter, Model 90; but may also be used with any
other transmitter such as the Heath AT-1, Johnson
Adventurer, Knight 50 Watt Transmitter, etc. using one or
two 807 or 616 tubes in the final R.F. amplifier, with
suitable modifications. The Screen Modulator permits
radio-telephone operation of a C.W. transmitter at minimum cost.

1-3. DESCRIPTION.

1-4. The Model SM-90 Screen Modulator is completely
self-contained in a chassis, with the tubes and interstage
transformer projecting above the chassis. An octal plug
projects from the chassis and plugs into the auxiliary
socket on the rear of the Model 90 Globe Chief transmitter,
providing all interconnections between the two units and
mounting the Screen Modulator on the Globe Chief. 

These manuals are available for the above equipment:

WRL Electronics -- SM-90 -- Service and User Manual
File name: WRL-6168-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 16
Size: 1.31 Mbytes (1373898 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: May 1957
Quality: Scanned document, all readable.
Upload date:
MD5: 2489b36349691e0e20dc664d3d361b18
ed2kID: e3374fbe9725f5bc73c3c82aea5e7478
Downloads: 58 since 06 July 2014
Information:
SECTION I. General Description of the WRL Screen Modulator,
Model SM-90.........................1

SECTION II. Parts Mounting and Wiring Procedure
.................................................1

SECTION III. Transmitter
Modifications..........................................................5

SECTION IV. Tune-Up
Procedure...................................................................7

SECTION V. Trouble
Shooting.....................................................................8

SECTION VI. HELPFUL KIT BUILDING INFORMATION
...................................................9

SECTION VII. Parts
List...........................................................................13
WRL-6168-Manual-Page-1-Picture
Start Free Download


Comments

No comments yet.

Add Comment

* Required information
(never displayed)
 
Bold Italic Underline Strike Superscript Subscript Quote Line Bullet Link Email Image Video
 
Smile Sad Huh Laugh Mad Tongue Crying Grin Wink Scared Cool Sleep Blush Unsure Shocked
 
1000
What is the day after Friday?
 
Enter answer:
 
Notify me of new comments via email.
 
Remember my form inputs on this computer.
 
 
Powered by Commentics