What are the options?
 
Winner of the Bulova-Accutron-Caravelle Masthead Contest
AWF_01_1

Results 1 to 3 of 3

Thread: What are the options?

  1. #1
    WTF Veteran Time2Fish's Avatar
    (Retired Engineer. Pratt Whitney Aircraft)

    Join Date
    May 2017
    Location
    Florida
    Posts
    721

    My Watchbox

    Default What are the options?

    I have a 214 Accutron that I am having to set the regulators past the tuning fork center mark so it does not run too slow. That is the only way I can get the Vibrograf to read -2.0 seconds. Current was:

    1.06V Unloaded 2.5uA
    1.76V Unloaded 3.6uA
    1.05V Loaded 5.1uA
    1.76V Loaded 5.9uA.

    I did go to a higher voltage but did not record the current. I believe based on the readings that the coil is good. Is the only option to replace the tuning fork if I want the regulators to be more towards neutral (center)?
    Last edited by mikeyt_53; 09-30-2020 at 08:24 PM.

  2. #2
    WTF Full Member Chris Radek's Avatar


    Join Date
    Feb 2018
    Location
    Lincoln, NE
    Posts
    341

    My Watchbox

    Default

    Yes, you should swap the fork out.

    Purists stop reading here!

    .... Or remove some mass from this one. Some were drilled inside the cup to bring them to time, you could do that if you can modify both sides about the same. You can't measure the mass directly, so use your timer. If you want to change it 10s, remove from one side until you get 5s, then do the other side. After messing with it, remember to let it hum a few hours before trusting your reading.

  3. #3
    WTF Veteran Time2Fish's Avatar
    (Retired Engineer. Pratt Whitney Aircraft)

    Join Date
    May 2017
    Location
    Florida
    Posts
    721

    My Watchbox

    Default

    Quote Originally Posted by Chris Radek View Post
    Yes, you should swap the fork out.

    Purists stop reading here!

    .... Or remove some mass from this one. Some were drilled inside the cup to bring them to time, you could do that if you can modify both sides about the same. You can't measure the mass directly, so use your timer. If you want to change it 10s, remove from one side until you get 5s, then do the other side. After messing with it, remember to let it hum a few hours before trusting your reading.
    Thanks Chris. I don't think I am good enough to start modifying the tuning forks. Hate to take apart a good working 214 movement but it is what it is. Thanks,

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

ShowCase, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.