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 < [email protected]> 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_______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe send an email to [email protected] _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe send an email to [email protected]
