[time-nuts] Re: HP5065A optical package rebuild

[paul swed]

Corby
Helpful pix. Did they all fail indepently or was there some sort of failure
that caused the failure.
I would certainly like to know how you may have rewound the heaters. How
about the exclusion area?
Regards
Paul
WB8TSL

On Mon, Jun 13, 2022 at 12:22 PM Corby Dawson via time-nuts <
time-nuts at lists.febo.com> wrote:

> Hi!
>
> Over the years I have several times removed and rebuilt the lamp oven
> cylinders for the HP5065A optical unit.
> This is a time consuming and tricky bit of work as the other wiring runs
> just under the surface of the potting used to hold the cylinder. Knowing
> where they approximately lie and being careful not to remove the potting
> in a large area around that point (I call it the exclusion zone!) the
> cylinder can be removed.
>
> I just had the occasion to rebuild an optical unit that had lost
> continuity to BOTH ovens AND the C-field winding!
>
> A bit daunting but after quite a bit of work success! It easily meets
> specs and is working quite well.
> Thought I'd share a PIX of the innards prior to the rebuild.
>
> Cheers,
>
> Corby_______________________________________________
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