[TMC] Mystery of the SBE-6 solved

[john poulton]

Man, it's good to hear that all that work was worthwhile!  Nice bit of detective
work there, Duncan..  FWIW I've found pix in the huge stash I'm working through
that appear to be of the NY State Emergency station.  Will get to them as soon
as I can, right after scanning the thousands of "rig pix" that I'm working on now..

73, John K4OZY


On Jun 17, 2011, at 1:39 PM, Duncan Brown wrote:

> A few years ago the AWA Museum received from the New York State 
> Emergency Management Office, a very nice TMC station consisting of a 
> SBT-1K(V) TX and a console with a GPR-92, FRR. MSR-4, TIS-3, patch 
> panels, etc.
> 
> The exciter unit of the SBT-1K(V) was a "SBE-6".  I could not find any 
> information on an "SBE-6" and no one on the list had ever heard of one.  
> It seemed to be similar to the SBE-9 (same filters).  It was not 
> identical to the SBE-9 in the manual (but having spent 30 years in the 
> communications industry, I know tlhat it can be very difficult to keep a 
> manual up to date with present production), but close enough to get the 
> SBE-6 tuned up and operating.  In discussing the identity of this 
> "SBE-6" unit, we joked that maybe whoever stamped the model number got 
> the "9" stamp upside down.
> 
> 
> Well, the "SBE-6" is real!
> 
> In looking over all the additions to John Poulton's TMC site, I found a 
> systems manual for the SBT-1K(V) - IN-295A; 15 June 1964 - and the SBE-6 
> is listed in there as the standard SBE for that configuration. As part 
> of this manual was a  page "Addendum #1 to SBE-8, -9, -10 Technical 
> Manual (IN-2008A)" [no date] that says "SBE-6 is superceded by and 
> directly replaced by Models SBE-8, -9, and -10"
> 
> The SBE-6 was apparently an interim version between the SBE-3 and SBE-9. 
> In the "Specifications" section of John's TMC site, I found "S828, Rev 
> A, 8-17-64; SBE-6 Test Procedure" and  "S977, Rev A, 1/19/66; SBE-3 to 
> SBE-6 Conversion."  The issue date of the SBE-8, -9, -10 manual 
> (IN-2008A) is 31 August 1966, so the SBE-6 may only be made for a couple 
> of years.
> 
> Thanks, John for scanning all of this TMC material and making it 
> available to everyone.
> 
> Have fun,
> 
> Duncan
> K2OEQ
> 
> 
> 
> 
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