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Author Topic: Collins Rombic Antenna Balun info needed...  (Read 935 times)
KG6KH
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Posts: 8




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« on: November 20, 2012, 01:11:30 PM »

I have a Collins Antenna Balun Part Number 758-5322-001, Type 179P20.  I beleive it is a 50-600 Ohm 9:1 balun for a rombic but don't know the power rating.  I would like to get the specs for this Balun and the antenna and termination unit that was used with it, any info would be helpful and appreciated.

Thanks,
KG6KH
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W9GB
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Posts: 2656




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« Reply #1 on: November 20, 2012, 07:24:30 PM »

Quote from: N4YXS
I recently acquired two sets of rhombic termination resistors (300 ohms)and two 50 to 600 ohm input baluns that were manufactured by Collins. There numbers are: 1) 754-9057-001 and described as "1KW Termination Kit" 2) 774-6261-001 " 3) DAA805-68-C-0020 " "Transformer, Radio Frequency /TF506/TRC-136" 4) 758-5322-001 " "50-600 ohm Balun" plus one - 7649858-001 also labeled - 764-9604-001-D with "REV B" one - 764 9058 001 with "REV C"
==
Can you shed any light on these items? I am very desireous of building a rhombic and am excited about this new acquisition. They may be surplus military as I heard about a few being used in MARS stations in Vietnam back in 1967, when I operated the MARS station at Ft. Detrick, MD.
-- John Rauch, N4YXS
This reference is rhombic-related emails sent to KB1SG.
It was written by Ian W. Cummings, KB1SG, and displayed by EI8IC, with his permission.

KB1SG's e-Mails on Rhombic antennas and their usage:
http://www.mapability.com/ei8ic/rhombic/email.php
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