[TMC] TMC FRR-502 (R5007) Story and Manual Info

[telegrapher at att.net]

Thats really great info.  My TMC manual is NAVSHIPS 92786A, Technical Manual for Radio Receiving set AN/FRR-49(V) 1 july 1960 on one cover sheet and 15 Oct. 1956 on another.  This is a pretty good sized reproduction of the manual.  A name stamp on the front pages is from a fellow in Levitown, Pa.  All tubes in it are the standard 6AG5, 6BA6, 6T8 etc.  

I contacted a fellow back east someplace a year or so ago and he sent me copies of a bunch of the changes including an addendum or two and a couple of the NAVSHIPS T series mods.  

Only thing i don't have are the schematics and parts lists for the 8-16 and 16-32 mc units.  Info is there for all the LF tuning drawers tho.  

I wonder if this is the same manual that Andy Moorer has on his web site?

Again, great info.

Larry
W0OGH


-------------- Original message from "G.White" : -------------- 
> Here is my story on my TMC FR502 radio. Maybe it can be put into a file on 
> the TMC Vintage Website by someone for reference. I purcahsed my TMC set 
> from a surplus electronics store in Toronto and it included one tuner 
> drawer, I bought a second tuner drawer. The units are labled as follows: 
> 
> Royal Canadian Air Force R5007A/FRR502, s/n 642 (This is the Reciever Sub 
> Unit) 
> Royal Canadain Air Force TN5010A/FRR502, s/n 5591 (This is the 2-4.5MHz 
> Tuner) 
> Royal Canadian Air Force TN5011A/FRR502, s/n 6968 (This is the 4-8MHz 
> Tuner) 
> 
> Each unit is also labled with a "REF" number, which I can list, if 
> interested 
> 
> Now here is the interseting part. I have 2 differnt manuals. One came with 
> the unit when I purchased it, the other I downloaded from the "James A. 
> Moore" TMC R5007 Site at: http://www.jamminpower.com/main/R5007.jsp 
> This is a good site with some info on the TMC rigs and other boatanchers. 
> 
> The first manual, supplied by the vendor, is labled as "Technical Manual for 
> Radio Receiving Set AN/FRR-49(V)", Buro of Ships-Dept of Navy, July 1960. 
> This seems to be partially incomplete, as the pages are excerpts of complete 
> "chapters". It has only 20 pages of info in its current form but I susspect 
> it was originally much larger. 
> 
> The complete one from James Moore is labled as "Instruction Book for 
> Communication Reciever Model FFR, Receiver Set, Radio AN/FFR-49(V)" 
> Technical Material Corporation 
> It is an 84 page manual,and is free to download from his site, but its 68 
> Megs and takes a few hours on dial-up. Be sure to use the " Save AS Target" 
> on right mouse click, when saving to your hard drive, or else it may 
> download as a .jps file rather than a .pdf file. He also has it available by 
> mail, for a modest price. 
> 
> There are some minor differences in these two manuals, when comparing the 
> two differnt manuals page to page. 
> 
> Long time ago, I had obtained from the internet, a third manual, which I 
> have since lost. It too had some small differences from the "Navy" manual. I 
> noted the differnces on my copy of the Navy manual, and it seems, the manual 
> from James Mooore, is quite similar to the one I had, but still, there were 
> a few differences in the text lay-out. 
> 
> All three manuals also included schematics. The third "lost" maunal, did 
> indicate some differnt tubes, as I recall. The TMC Units I have, do not use 
> the same tube set as discribed in the other two manuals. There is also a 
> schematic available from an Italian site, which shows the same schematic as 
> the 2 manuals in my posession. Again, this Italian schematic copy doesnt 
> reflect the tube layout in my set. 
> 
> As I recall, after looking into this differnt tube lay-out, I came to the 
> conclusion that I have an early set, which was then replaced by the later 
> version which used the tube set as shown in most schematics. The tubes that 
> are differnent are as follows.; 
> 
> In MY Receiver, FRR-502, the BFO Ocillator socket is factory engraved on the 
> chasiss as being a 7199. Most schematics show this as a 6AG5. The 6AL5 in 
> most sets schematics, is engraved on my chasiss as requiring a 6FM8. The 6T8 
> tube spot is engraved and supplied with a 6BE6 in my set. 
> 
> In MY Tuner drawers, rather than having the "typical" 4- 6AG5 AND 1 6AU6, My 
> set has 2-6AG5 AND 1-6BZ6 AND 1-5842, and the 1-6AU6. The chasiss is 
> engraved with these different tube numbers and I THINK the lost manual I has 
> also showed the different tube complement. Now for the neat thing. I just 
> found out a fellow in our Radio Club,has the same set as me, and his set 
> uses the same tube compliment as mine. The best part is, he gave me a copy 
> of the factory schematic SHOWING the differnt tube complement, as found in 
> my set. The wiring around the tubes is also differnt. 
> 
> So it appears, a TMC Factory revision was made at some time at, probabbly 
> from the 7199 to the cheaper 6AG5 etc. The schematic that shows the 7199 
> etc., is labeld as being for an "R-5007A/FRR-502A with TN-5010A/FRR-502A" So 
> perhaps the "A" suffex explains my revision. (Although the "A "would imply 
> the 7199 repaced the 6AG5 etc!) 
> 
> With this schematic, my friend included 7 pages labled "Performance Checks, 
> AN/FRR502A-2". He has also come up with a modification to sub the expensive 
> 7199 with a 6U8A, by reworking the tube pinouts. 
> 
> So there you have it. If anyone has the "A" set and needs a cpoy of the 
> schematic of "performance check" info, or the 7199 fix, I can scan and send 
> to you. I hope this has provided some insight into this set and the apparent 
> 2 versions of support documents that are available. If you have any further 
> info or questions, please contact me at my call sign at 'rac' dot ca. It 
> appears to me, that the two differnt tubed models would be to diffiecult to 
> rewire, in order to make them similar, or to do the tube subsitution from 
> one to the other. I have to take a closer look hawever, as it may be 
> possible, with some thought. 
> 
> (Also note in some places, reference to these units as TMC FFR not FRR. This 
> is not a typo. TMC used the factory model number FFR-3 to discribe the 
> receiver and FFRD-5A,-6A,-7B,-8B,-1,-2,-3,-3M. For the various Tuner Drawers 
> and FFRDP and FFRDP-H for the Cabinet warming unit.) 
> 
> 73 and keep it glowing. 
> Greg White 
> VA3VFO 
> Toronto, CANADA 
> 
> 
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