[Milsurplus] ( was Japanese Chair ) GO-9, TBW A3

[Hubert Miller]

I have the RCAF manuals but i have had them packed away for years. Ditto for the HF section, in its transit case, which i bought many years ago and have not yet tackled.
I recall when i bought it, it somehow got hung up at the border, and i sent money to a customs broker to clear it. He was actually a trusting person, as he did the work
before receiving the requested fee from me.
I am currently thinking i should sell this set  also.
When i find the manuals, we can compare. I suppose the USAAF were identical, just labeled for the T.O. nomenclature.
-H

From: WA5CAB at cuses.com [mailto:WA5CAB at cs.com]
Sent: Sunday, March 5, 2017 10:04 AM
To: Kargo_cult at msn.com
Subject: Re: [Milsurplus] ( was Japanese Chair ) GO-9, TBW A3

First, hams in at least recent years always seem to write the RCAF radio nomenclatures as AR-2, AR-6, AT-1, AT-7 and AT-12.  The USAAF manuals uniformly show them as A.R. 2, A.R. 6, A.T. 1 and A.T. 7.  But do show AT-12 (or in one place, AT 12).  So if you are searching a database or online, run the changes on all variants before giving up.

Second, T.O. 08-45-25 on the AT-12 does not mention any specific receiver.  TO 08-45-26 on the AR-2 and AR-6 only mentions the AT-1 and AT-7 (but as A.T. 1, etc.).

My copies of the three manuals (T.O. 08-45-25, -26 & -27) are 2nd generation or worse copies made on early copying equipment and while the text and schematics cleaned up pretty well, the photos are. with few exceptions, terrible.  Fortunately, the photo of the complete AT-12 Canso installation and of the front of the A.R. 2 are the best of the lot.

Go to http://imagehost.vendio.com/a/3491303/view/AT-12Canso.jpg for the AT-12 photo.

One other comment - the similarity between the AT-12 and the GO series is more apparent than real.  The center unit in the GO is the power supply.  The center unit in the AT-12 is a second LF transmitter.  The Modulator-Power Supply is a separate unit that bears no resemblance to the transmitters.


In a message dated 03/05/2017 01:37:29 AM Central Standard Time, Kargo_cult at msn.com<mailto:Kargo_cult at msn.com> writes:

RCAF somehow had a different philosophy. Their AR-6 + AT-12  pair, used in RCAF "Canso" PBYs, had a transmitter similar in some ways to the the GO-9, but.
There were 2 sections, LF and HF, and a power supply - modulator.  No one that I know of, knows what or even IF there was another command-type radio
onboard. Unfortunately, so far no photos online of the AT-12. Seems not many survived, of not many built, and it further appears NO LF sections or PS-modulators
survived. Writing has been around, what, 5000 years? and it seems only recently were thorough attempts started, to catalog all past technology.

Not much documentation on USCG or RCAF equipment, seem little known about these areas.
-H


Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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