[time-nuts] (no subject)

paul swed paulswedb at gmail.com
Mon Dec 7 13:29:42 UTC 2015


Jim
Welcome to time-nuts and you were indeed lucky to get a 5065.
Lots of possible items.
But the fact that the last line are all 0 may mean its as simple as the
loop selector being open and not closed. Normally the control would tend to
drift all the way over. On reset it goes all the way left and if it doesn't
find the second harmonic it goes all the way to the right. Easy thought at
least.
Beyond that many possibilities for issues. After all they are old.
Regards
Paul
WB8TSL


On Sun, Dec 6, 2015 at 11:30 PM, Jim/Anna McIntyre <bbimini at gmail.com>
wrote:

> Greetings all,
> My name is Jim, I'm a Noob to your list.  A local DoD contractor unloaded a
> heap of test equipment lately, and I scored a 5065A.  It's s/n 1532A00666,
> has an Olive green-ish RVFR, and a 00105-6103, series 1284 Quartz
> oscillator.
>
> I have had the instrument powered up for about an hour now. (I first
> checked the +/- 20V supplies and they're OK.)  I have a 1A source connected
> to the TE lines.
> At the end of the 1st hour here's what I'm seeing (Open Loop Mode).
>
>
> Batt 48
> Supply 38
> Lamp Oven 30 (down from 50)
> Cell Oven 30 (down from 50)
> Osc Oven 44 (down from 50)
> Photo 28
> 5 MHz 32
> Control, Error, 2nd Harmonic all read 0
>
>
> I adjusted the Quartz Coarse control to be within 10-7.  Fine is set to
> 250.  Synth output measures 5.315 005 728 MHz, and is about 1.8 Vpp.
>
> Control, Error, 2nd Harmonic all read 0 after I switch to Closed Loop and
> hit 'Start'
>
> Please advise on next steps...
>
> Thanks
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