[time-nuts] FTS-4040/A - Looking for voltage on switching power supply

[Taka Kamiya]

30V seems to be the answer.  I am going to attempt to repair the factory switcher.  I found one electrolytic gone and few other things suspect.  So I will know for sure.  Model number (custom) suggests 30V as well.  As to manuals, I can go as old as 4040B, but not A.  I do have an option of using it with 24V external.  

--------------------------------------- 
(Mr.) Taka Kamiya
I'm stuck in a wormhole....  Hello, worms! 

    On Monday, March 18, 2019, 11:03:42 AM EDT, gandalfg8--- via time-nuts <time-nuts at lists.febo.com> wrote:  
 
 I believe the FTS-4040 was originallly a Time and Frequency Solutions product and the manual for their FTS-4060 can be found here.....
www.to-way.com/tf/4060man.pdf
That shows the pre-regulator DC power requirements as a nominal 26 V, with a range of 22 to 30 V.

I'm not sure how relevant this would be to the FTS-4040 but wouldn't be too surprised if there are similarities.
Nigel, GM8PZR
--------------------------------

Now it is certain the failure is power supply.  I fed 26V into DC port and everything is working as before.  I'd rather replace this faulty supply.  Question is, 24V?  28V?  30V?  or 28.45V?  This power supply appears to be a custom unit.  Still looking for spec on power supply.
At least it's not the cesium tube.... phew!--------------------------------------- 
(Mr.) Taka Kamiya
I'm stuck in a wormhole....  Hello, worms! 

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