[Milsurplus] "DFing ship receiver L.O." small additional fact?

[Bill Riches]

Could this be related?

 

https://en.wikipedia.org/wiki/Mary_D._Hume_(steamer)

 

73,

 

Bill, WA2DVU

Cape May

 

From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
Hubert Miller
Sent: Thursday, September 8, 2016 6:55 PM
To: 'MilSurplus QSLNet'
Cc: wireless-set-no19 at yahoogroups.com
Subject: [Milsurplus] "DFing ship receiver L.O." small additional fact?

 

Re the topic of "DFing radio receiver L.O.", here is an intriguing little
tidbit i found while going thru some paper-

 

"Form 7999  2/40

Inventory Rough Notes - SS Mary D

Radio Room

........................

.............

Receiver RCA IP-501A  Sr. No. 397 & WW

Condemned by Navy                                                 1

 

Transmitter RCA  ET-8010  Ser. No. 3846              1

Auto Alarm  RCA  Mod. AR-8600  Sr.# 37702       1 "

 

end quote. That's all the communications equipment onboard!

I was unable to determine what kind of ship "Mary D" was - or why the Navy
would be the authority to "condemn" the IP-501A.

And this date was near two years before U.S.A. entered the war.

I DO have paper to establish that Alaska Steamship Co. replaced the IP-501s
in their ships with newer receivers - but not much 

newer:  Sargent 10, and National SW-3, both regens. Perhaps because Alaska
Steam was coastal, not sailing across either ocean,

they were allowed to keep receivers which were not on the "FCC Approved safe
list."

-H M 

 

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