[time-nuts] Repairs and mods underway on HP 3586b

Tisha Hayes tisha.hayes at gmail.com
Wed Apr 4 08:31:13 EDT 2018


Bob,
Thanks so much, as soon as I saw the key sequence I knew where that was
going!

If only more manufacturers had a sense of humor.

We had a test-jig in our development lab that would go through a repeating
sequence and spit out a text string for each step it completed;

"It slices"   *BEEP*
"It dices"    *BEEP*
"It will cut a cow in half"  "BEEP,BEEP*

-ad infinitum

After that ran for a couple of days straight our engineering manager made
us move the jig to a room far far away from his office.
Tisha

*Ms. Tisha Hayes*


On Tue, Apr 3, 2018 at 11:14 PM, Bob Darlington <rdarlington at gmail.com>
wrote:

> Tisha,
>
> Magnus encouraged me to share my "Happy Easter" with you, or at least this
> demo that's kinda like an easter egg:
>
> https://www.youtube.com/watch?v=8MZpnVs6CWc
>
> Enjoy, all.
>
> On Sun, Apr 1, 2018 at 8:24 PM, Tisha Hayes <tisha.hayes at gmail.com> wrote:
>
> > Thanks to those who responded to my requests off-list for details on
> > correcting a partially functional HP 3586b. Here is where I am at with
> it;
> >
> > Replaced the incandescent lamp inside of the 5060-0329 rotary encoder
> for a
> > white LED with a resistor to work at 5VDC.
> > Ordered a 75 ohm BNC chassis jack
> > Installed two BNC-SMB cables for the 50 MHz connections that are normally
> > covered with blank plugs on the back panel
> > Removed all of the buttons and soaked them for a few hours in a mixture
> of
> > hydrogen peroxide and oxy-clean to remove the brownish oxidation
> > (in the process) of pulling the little wafer springs out of each switch
> and
> > rotating the metal around 180 degrees so the buttons do not need to make
> a
> > hard "click"
> > replaced the NiCad battery with an NiMH
> >
> > The unit already had the 10 MHz precision oscillator module (thanks to
> > Perry Sandeen for that).
> >
> > I have a couple of Rb standards that are already used for metrology
> > (spec-an's, tracking generators, R-590 and a couple of other receivers).
> I
> > will probably stick with those as frequency references as they are
> usually
> > running for days at a time.
> >
> > *Ms. Tisha Hayes, AA4HA*
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