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RF and Microwave Components Online Catalog

RF Amplifiers and Antenna Couplers

 

Harris Corp. CU 938C/URA-38 antenna coupler

This massive coupler, manufactured by Harris Corporation RF Communications Division, is referred to as: “CU-938( )” in some military publications. This antenna coupler is part of the AN/URA-38C military communications unit. Covers 2-30 mhz, and is rated for 1,000 watts average power, continuous duty. (Probably VERY seriously under-rated!) Internal components include a 4.5 inch diameter, heavy duty, edge wound, motor driven variable inductor, and a Jennings 500 pf, 10,000 volt, motor-driven vacuum variable capacitor. Supply: 115V 48-450Hz. Designed for shipboard use, with super heavy duty cast case, gasketed for pressurization. Outside dimensions are 30 inches X 15.25 inches X 11 inches, and weight is 74 pounds. Special shipping considerations apply. The coupler can only be shipped to commercial addresses due to packed weight over 70 pounds. Condition: Appears to be new / unused old stock, with a minor warehouse storage ding on one of the carrying handles. ONLY ONE UNIT AVAILABLE. Data plate is also marked: N00104-89-C-M060, Space and Naval Warfare System Command

To operate the CU 938C/URA-38 the control unit is needed. We do NOT have any of the control units for this coupler. The control unit's P/N is C-3698( )/URA-38( ).

All military required specifications that the CU 938C/URA-38 is required to meet can be found in a PDF file http://www.dscc.dla.mil/Downloads/MilSpec/Docs/MIL-C-28806/mil28806.pdf

(Sorry, absolutely no shipments of this item outside the 50 US states.)  

Price:  $2995.00 ( Order Now! )



Broad Band RF Power Amplifier Assembly from TN-612

We have a large supply of the front panels removed from the TN-612 "pre/post selector" which was part of the GRC-215 system, also known as Regency net. These front panels include the broadband RF amplifier section. The pre-post selector was designed to cover from 1.6 to 24 mhz. The super high quality amplifier consists of a single S15-28 tr ansistor, that drives a pair of MRF-466 tr ansistors. These tr ansistors operate on 28 vdc. The amplifier was originally used to produce less than 10 watts of drive for the final of the GRC-215. The amplifier should be capable of well more power output with minor changes.

Click following pictures to enlarge

The S15-28 tr ansistor is rated at 15 watts out with .5 watts drive. The finals (MRF-466 X 2) are rated at 40 watts each (80 watts total) with 1.25 watts drive each. The heatsink is probably not sufficient for this higher level of output unless external forced air cooling or additional heatsinking is added.

A limited amount of additional "reverse engineering" information is supplied with purchase of these units at no charge. We will also supply the mating plug-in connectors that originally supplied power and signal to this assembly at no additional charge as long as supplies last. Many of these units were removed from unused, old stock! Guaranteed functional components. Measures 17.5 inches wide X 4.5 inches tall X 3 inches deep. Weight is 6 pounds.

Price:    
1 to 4 units $49.00 each,       
5 to 9 units  $45.00 each       
10 or more units $39.00 each!
(Order Now!)


Ordering:

To order, use our secure online order form, or call us Monday through Friday 8 AM-5 PM Eastern time at 770-973-6251.

You may also print the order form using your browser's print button and fax your order to us at 815-461-7730. PLEASE give us your email address so that we can easily contact you in case we have a question.

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RF and Microwave Components Online Catalog
 

 

 

 

 

 

 

 

 

 

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