Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: Looking for surplus synchro's  (Read 3217 times)
N6JSX
Member

Posts: 217




Ignore
« on: December 04, 2000, 07:14:09 PM »

I'm an old Navy salt and my fire control system used many TDR/TDX/CT 120VAC 60 Hz synchro's. I would like to find some of these synchro's to build a quick antenna rotor system. Sure would like any suggestions/sites help?
TNX, Kuby
Logged

K4ZA
Member

Posts: 19




Ignore
« Reply #1 on: January 16, 2001, 09:01:30 PM »

several selsyns were on eBay lately....  
cf. page 24 current Fair Radio catalog...
although perhaps these are not large enuff--you do say rotator, rather than rotator indicator...?
Logged
K3UOD
Member

Posts: 145




Ignore
« Reply #2 on: May 07, 2001, 08:40:44 AM »

I'd love to find a few synchros to play with also.  To the uninitiated, synchros come in 2 varieties, torque and control.  The torque receivers can turn a light load (like a dial or a pot) directly.  Control transformers are used for position sensing.  They determine the difference between the ordered position of a load, and it's actual position.  The difference is called the "error signal".  The error is fed into a servo amplifier, which in turn, drives a motor which moves the load.  This is how you can control the movement of a huge 16 inch gun turret on a battleship by twisting a small knob.

Kuby, e-mail me at k3uod@hotmail.com and let me know what ships and systems you worked on in the Navy.

73
Jerry Golabowski, FCC(SW), USNR (ret)
Logged
KL7IPV
Member

Posts: 984




Ignore
« Reply #3 on: May 07, 2001, 05:40:18 PM »

You might also try to look on WWW.surplussales.com  They have a lot of nifty stuff there and I wouldn't be surprised if he had exactly what you want.
73,
Frank
KL7IPV
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!