[R-390] HP 8640B Question

[Barry]

> Barry,
>
> There has been a LOT of discussion about these nylon/delrin (?) gear on 
> the Test Equipment (qth) list.
>
> Apparently someone is "trying" to get a "good" one so that BETTER ones can 
> be made.
>
> You may want to join and search the archives, or just search that lists 
> archives.
>
> One site, <http://jvgavila.com/hp8640b.htm>, shows the split gear clearly.
>
> This causes the gear assembly to jump a tooth or two,, no doubt causing it 
> to NOT be where it is supposed to be!
>
> Apparently, this is true of similar numbered instruments.
>
> Bob - N0DGN

Hi Bob,

It may very well have been on the Test Equipment list that I saw something 
about the replacement gears.

Yes, I did see the pics on Jose's site.

There's one up for bid on eBay and I think its just in need of gear work.

Thanks!

Barry - N4BUQ