Research Monograph on the SCR-300 Radio Set for Collectors:: Free Download

[SGM (ret.)]

Hi guys,

 

I'd like to offer up a research document that I've put together on the SCR-300 Radio Set.  It's something that I did to help me sort out some of the confusing details that arise when trying to assess the originality of one of these radio sets.  That is, something to help me with my own collecting.

SCR-300 Details and Variations

If anyone notes incorrect information or has something they'd like to add, please let me know.

Finally, I'm looking to buy a set of the straps (ST-54), waist belt (ST-55) and back pad (M-391) for the SCR-300 set, either all together or as individual items.  I'll even consider post-war French made items if you have them to sell.  Hit me up with a PM here if you have something to offer.

Thanks and happy collecting!

[WARHORSE]

Hi,

Your link did not open. I have a SCL-514 that is an experimental version.

Bruce H.

[SGM (ret.)]

Sorry about that.  Some how I missed the notice of your reply, too.

 had updated the monograph but failed to update the link as posted everywhere.  Here's the current link to the latest version:

 

SCR-300 Details and Variations DRAFT 2

Would love to see some pics and info on your SCL-514.  Certainly a rare bird!

Here's the link to another draft of photos of the SCR-300 Operators and Use:

SCR-300 Operational Use and Operators

Again, something of a work-in-progress that I'll likely edit as I get more information and find new photos.

[WARHORSE]

Send me your email and I will send pictures and info.

Bruce H.

[email protected]

[SGM (ret.)]

On 7/1/2023 at 9:14 PM, WARHORSE said:

... I have a SCL-514 that is an experimental version.

Bruce H.

I think that I recently saw one of these sets in use in a brief scene in a YouTube video on US Army maneuvers in the US before WWII.  I'm kicking myself in the rear for not stopping the video right then to write down the title and the time so that I could go back and do a screen-capture.  Now, of course, I can't find it again!

I think it was one of the Periscope videos, but I can't be sure.

[SGM (ret.)]

On 10/8/2023 at 9:39 AM, SGM (ret.) said:

I think that I recently saw one of these sets in use in a brief scene in a YouTube video on US Army maneuvers in the US before WWII.  I'm kicking myself in the rear for not stopping the video right then to write down the title and the time so that I could go back and do a screen-capture.  Now, of course, I can't find it again!

I think it was one of the Periscope videos, but I can't be sure.

I eventually found the video clip.  It was NOT another of Bruce's SCL-514.  It was either an SCR-194 or SCR-194 (the ORIGINAL "Walkie-Talkie," BTW).  However, still relevant since both were the predecessors to the SCR-300.  Their story is also part of the story of the development of the SCR-300 (and in abbreviated form it's been included in final draft of the SCR-300 research monograph).

Since the short public exchange above, Bruce has shared photos of his SCL-514, and...  wow!  What a unique and historically significant piece of equipment!

I'm in the final draft stages of the complete SCR-300 research monograph (running around 200 pages), and hopefully I'll have it ready to upload and share with everyone in the next few days.  I must say that Bruce's generosity in sharing photos of his SCL-514 has put a "cherry on the top" of the story of how the SCR-300 came about.  I believe that it is the only surviving example one of the FOUR DIFFERENT COMPETING DESIGNS which were tested and trialed to satisfy the Signal Corps' specifications.  Of course, it also represents the winning Galvin Mfg. design.

At the moment I'm adding in some final touches with information about post-war French army use of the SCR-300 / AN/VRC-3 as an aircraft radio in light fixed wing and rotary wing planes along with notes on the different spring-wire chassis and battery box clamps.

[SGM (ret.)]

Alright friends and fellow collectors, here's the final-final draft of the SCR-300 research project:

Research Monograph:: Radio Set SCR-300, History, Development, Employment, and Details FINAL DRAFT

(All previous editions of it on my DropBox have been deleted.  Use the above link now.)

It's nearly 200 pages long, and although I had enough information to keep going, I felt like I had accomplished all I set out to do.  So, enough was enough, so to speak.

 

I owe a special thanks to Yves, YLG80 (on the G503 Forums) for all of the information that he shared with me!
 

Also, a MAJOR THANKS to Bruce H., WD9GHK, (here on the USMF) for sharing his SCL-514 Galvin prototype SCR-300 set with me.  This is an incredible artifact and our collective knowledge about the early development of the SCR-300 is much, much richer for his generosity.

So, this little work does contain some new information, though, or at least some stuff that I have never seen before.  I have a good deal of the history of the early development of the set to include some never-before-seen photos of the only Galvin prototype still in existence.  (Thanks to Bruce H.!)  Beyond that, well, it really depends on just how "geeky" you are.  There's some really deep "geeky" stuff in it.  Just remember, you have been warned!

Enjoy, or... Exercise your option to just not open it up.  In either case, remember that you are getting absolutely, guaranteed, 100% of your money's worth!  (It's free, what else can I say?  LOL!)