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

Bob Darlington rdarlington at gmail.com
Wed Apr 4 00:14:15 EDT 2018


Magnus encouraged me to share my "Happy Easter" with you, or at least this
demo that's kinda like an easter egg:


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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