[Milsurplus] TCS and the 18M

[mac]

All,

Interesting questions being raised here by Ray and others concerning  
TCS evolution and history.  Raised a question in my mind as to if/ 
where the MAK and MO-1 radios might fit into the story.  Would seem to  
have had a similar mission, i.e., small, mobile HF two-way radios of  
about the same power level.  Four channel xtal control only in the  
case of the MAK/MO-1 which capability was included in the TCS sets as  
well.  Also note that the remote control box used with the MAK/MO-1 is  
identical circuitwise to the TCS box except that is didn't include a  
speaker.  MAK/MO-1 not Collins, though.

Anyone know more?

Dennis D.  W7QHO
Glendale, CA

**********************

On Nov 18, 2011, at 7:22 AM, Ray Fantini wrote:





> Anyone who knows me knows that my interest is more along the lines  
> of development, use and evolution of equipment and not necessarily  
> in the thorough and complete understanding of one item. Mr. Stinsons  
> post regarding the Collins 18M brings up some interesting questions  
> regarding the TCS family of radios. First: was the 18M produced or  
> used in military service? The relevance of this question is that I  
> have always thought the TCS was an adoption of a civilian design  
> that was pressed into military service if so then what was the  
> civilian radio that fathered the TCS? Was the 18M that radio? Or is  
> the 18M a radio that was the civilian equal to the military TCS?  
> Second: what was the production run for the TCS? When did the first  
> radio of the TCS series, maybe TCS-1 appear? What was the last  
> series? maybe the TCS-15? And were older TCS radios upgraded to  
> later versions with additions of noise limiters and N connectors?  
> And did any of the series come with factory installed noise lim
> iters or factory mounted N connectors. I have never seen an N  
> connector that looks as if it had not been done in the field. Third  
> question: was there any intermediate radio between the TCS family  
> and the URC-35? I know the URC-7 fits in there but have only one  
> time seen a URC-7 and have seen tons of TCS and URC-35 sets I. would  
> speculate the URC-7 was not a very successful radio being not many  
> around. So if anyone feels up to the challenge and can produce a  
> timeline for the TCS family of radios including what was used before  
> the TCS, when they were deployed and what replaced them I think that  
> would be great information to get out to the group.
> Ray F KA3EKH
>
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