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 A H Traeger Flying Doctor Radio Transceiver 51MA.
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 Return to top of page · Post #: 1 · Written at 9:21:03 PM on 3 April 2024.
Cardi's Gravatar
 Location: Darlington, WA
 Member since 3 April 2024
 Member #: 2629
 Postcount: 2

Does anyone have information on this model? Google yields nothing. My neighbour passed it on to me; box very rusty but interior looks restorable. Some spare valves, vibrator and coil unit, but only info with it is a snail-chewed "Schematic" showing valve and major component positions, and dated 1952. A circuit diagram would be most useful - or am I chasing a dream?


 
 Return to top of page · Post #: 2 · Written at 10:48:51 PM on 3 April 2024.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5303

It might be an idea to list the tubes to get a model number, that may be similar. There is a Traeger Museum in Adelaide apparently?

https://www.radiomuseum.org/dsp_hersteller_detail.cfm?company_id=17114 Info but no data on that model.

No info on that one in Rodney Champness's "Out Back Radio From Flynn to Satellites".

HRSA, WIA, even RFDS may have it in the areas they operated?

Photograph the inside of the pan where all of the bits are before its touched. In desperation, or no chance in hell, I have resorted to reverse engineering. One hopes that it has not been overly tampered with?

Its amazing sometimes as to what is still out there. Also try Kevin Chant.


 
 Return to top of page · Post #: 3 · Written at 10:48:09 AM on 4 April 2024.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6720

It's not specifically mentioned here that I can see, but there's a ton of info on Traeger:

https://www.samhs.org.au/Virtual%20Museum/hospital-andother-orgs/rfds-wireless/flying-doctor-radio.htm


 
 Return to top of page · Post #: 4 · Written at 11:27:48 AM on 4 April 2024.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5303

An interesting thing: At the time Flynn & Traeger were developing their Radio for the out back. The British, covered by the official secrets act, already had trench radios in WW1. So despite all of the hype etc. around the Red Baron, the ground stations would have been notified & the posts would have been expecting him.


 
 Return to top of page · Post #: 5 · Written at 1:57:06 PM on 19 April 2024.
GARYS CRAMMONDS's Gravatar
 Location: BRISBANE, QLD
 Member since 3 March 2024
 Member #: 2617
 Postcount: 3

A circuit of the Traeger 51MA was published by the HRSA in their "Making Waves" journal in January 2005, p15.


 
 Return to top of page · Post #: 6 · Written at 8:53:14 PM on 1 June 2024.
Cardi's Gravatar
 Location: Darlington, WA
 Member since 3 April 2024
 Member #: 2629
 Postcount: 2

Many thanks to all of you for your replies!


 
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