Hi Nick:
Thanks for your help in finding this Riverbank Laboratories,
Engineering Division, 60 CPS electromagnetic Tuning Fork at Fair
Radio.
I suspect it was used on a Navy vessel to provide a stable and
temperature independent 60 CPS for TTY or crypto equipment after
1932 since that's the date on the patent.
I've posted photos and the patent at;
https://prc68.com/I/TuningForks.html#Riverbank
PS half the patent was assigned to George Fabyan, founder of Riverbank
Laboratories.
------------------------------------
Date: Wed, 18 May 2022 11:39:44 -0400
From: Nick England <[email protected]>
To: Greenkeys <[email protected]>
Subject: [GreenKeys] TTYs at Fair Radio. Lima OH
Message-ID: <CAB55hNfdSTHPhFRTWzA57caSXKJdwfjsh89K2pzLkE+=HDnUHw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
In case you are heading to Dayton.
This pile is under an outside shed. Looks like 35ASR, 28KSR, TT-117,
TT-76C
Email me for photos. I tried to post photos but they are too big.
--
Have Fun,
Brooke Clarke, N6GCE
https://www.PRC68.com
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.
-------- Original Message --------
Date: Wed, 18 May 2022 11:39:44 -0400
From: Nick England <[email protected]>
To: Greenkeys <[email protected]>
Subject: [GreenKeys] TTYs at Fair Radio. Lima OH
Message-ID:
<CAB55hNfdSTHPhFRTWzA57caSXKJdwfjsh89K2pzLkE+=HDnUHw@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
In case you are heading to Dayton.
This pile is under an outside shed. Looks like 35ASR, 28KSR, TT-117, TT-76C
Email me for photos. I tried to post photos but they are too big.